{"id":259986,"date":"2023-06-26T11:31:50","date_gmt":"2023-06-26T09:31:50","guid":{"rendered":"https:\/\/sherpas.com\/blog\/?p=259986"},"modified":"2025-06-23T17:30:09","modified_gmt":"2025-06-23T15:30:09","slug":"syllogisme","status":"publish","type":"post","link":"https:\/\/sherpas.com\/blog\/syllogisme\/","title":{"rendered":"Le syllogisme : la logique incarn\u00e9e !"},"content":{"rendered":"\n<p>Syllo-quoi ? Si le mot de syllogisme te rend perplexe, ou que tu l\u2019as d\u00e9j\u00e0 vaguement entendu sans en comprendre le sens, tu es au bon endroit. C\u2019est parti pour d\u00e9couvrir <strong>ce type de raisonnement <\/strong>qui date de la Gr\u00e8ce Antique ! \ud83e\udd29<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><img decoding=\"async\" width=\"498\" height=\"276\" src=\"https:\/\/sherpas.com\/blog\/content\/uploads\/2023\/06\/YoureAncientGIF.gif\" alt=\"grecs disant au syllogisme qu'il est vieux\" class=\"wp-image-259990\"\/><\/figure>\n<\/div>\n\n\n<p><\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"definition-et-origines-du-syllogisme\">D\u00e9finition et origines du syllogisme \ud83d\udcd6<\/h2>\n\n\n\n<p>Le syllogisme est <strong>une forme de raisonnement logique en trois temps dont d\u00e9coule une conclusion in\u00e9vitable <\/strong>: 2 propositions appel\u00e9es pr\u00e9misses, permettent d\u2019aboutir \u00e0 la conclusion. Le sens du mot est contenu dans son \u00e9tymologie, <em>syn <\/em>(avec) et <em>logos<\/em> (discours, parole, id\u00e9e). Pour le dire clairement, il s\u2019agit d\u2019une id\u00e9e (associ\u00e9e) avec (une autre). \ud83e\udd32<\/p>\n\n\n\n<p>Tu as s\u00fbrement d\u00e9j\u00e0 vu la r\u00e9flexion suivante :<\/p>\n\n\n\n<p><strong>Tous les hommes sont mortels. Socrate est un homme. Donc Socrate est mortel.<\/strong><\/p>\n\n\n\n<p>Et bien cette structure, c\u2019est un syllogisme ! \ud83d\ude04<br><\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"mais-alors-ca-vient-dou-le-syllogisme\">Mais alors, \u00e7a vient d\u2019o\u00f9 le syllogisme ? \ud83e\uddd0<\/h3>\n\n\n\n<p><strong>Le syllogisme ne date pas d\u2019hier :<\/strong> c\u2019est le philosophe grec <strong>Aristote <\/strong>qui a formalis\u00e9 cette notion dans <em>Premiers Analytiques <\/em>au IIIe si\u00e8cle avant J.-C. Il en donne une d\u00e9finition :<\/p>\n\n\n<section class=\"citation\">\n        <q class=\"citation__text\"><p>Le <span style=\"color: #00ccff\"><em>sullogismos<\/em> <\/span>est un discours dans lequel, certaines choses \u00e9tant pos\u00e9es, <span style=\"color: #00ccff\">une chose distincte de celles qui ont \u00e9t\u00e9 pos\u00e9es s\u2019ensuit n\u00e9cessairement,<\/span> du fait que celles-l\u00e0 sont<\/p>\n<\/q>\n\n                    <div class=\"citation__infos \">\n                                    <p class=\"citation__infos-name\">Aristote<\/p>\n                                                    <p class=\"citation__infos-job\"><\/p>\n                            <\/div>\n            <\/section>\n\n\n\n<p>On retrouve dans cette citation l\u2019id\u00e9e de<strong> pr\u00e9misses<\/strong> (les \u00ab choses pos\u00e9es \u00bb, les faits \u00e9tablis), qui permettent n\u00e9cessairement de <strong>d\u00e9duire une troisi\u00e8me id\u00e9e<\/strong> : la conclusion.&nbsp;\ud83d\udca1<\/p>\n\n\n\n<p>Pourtant, l\u2019id\u00e9e lui est ant\u00e9rieure. <strong>Les sophistes et les disciples de Platon<\/strong> voulaient, d\u00e8s le IVe si\u00e8cle avant J.-C., <strong>codifier les r\u00e8gles du d\u00e9bat<\/strong> rh\u00e9torique. L\u2019id\u00e9e \u00e9tait de forcer son adversaire \u00e0 admettre un argument qui d\u00e9coule logiquement de propositions <strong>qu\u2019il aurait d\u00e9j\u00e0 admises par ailleurs.<\/strong> <\/p>\n\n\n\n<p>Par exemple, si tu veux convaincre ton adversaire que Socrate est mortel, tu peux<strong> passer par des voies d\u00e9tourn\u00e9es <\/strong>et lui faire d\u2019abord admettre que les hommes sont mortels, et que Socrate est un homme.<\/p>\n\n\n\n<p>C\u2019est une fa\u00e7on de <strong>tromper ton adversaire <\/strong>pour qu\u2019il ne se rende pas tout de suite compte o\u00f9 tu veux l\u2019amener. C\u2019est un peu le <em>twist <\/em>auquel il ne s\u2019attend pas !<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><img decoding=\"async\" width=\"498\" height=\"284\" src=\"https:\/\/sherpas.com\/blog\/content\/uploads\/2023\/06\/AiesConfianceGIF.gif\" alt=\"serpent qui essaie de te convaincre d'avoir confiance\" class=\"wp-image-259994\"\/><\/figure>\n<\/div>\n\n<section class=\"you-know\">\n                <div class=\"you-know__title\"><p>Qui sont les sophistes ? \ud83d\udd0e<\/p>\n<\/div>\n                        <div class=\"you-know__text\">\n            <p>Les <strong>sophistes<\/strong>, les <strong>\u00ab sp\u00e9cialistes du savoir \u00bb <\/strong>sont fortement critiqu\u00e9s par <strong><a href=\"https:\/\/sherpas.com\/blog\/platon\/\">Platon<\/a>, l&rsquo;auteur de<a href=\"https:\/\/sherpas.com\/blog\/analyse-allegorie-caverne-platon-sherpas\/\"> la c\u00e9l\u00e8bre all\u00e9gorie de la caverne<\/a><\/strong>. Dans <em>Gorgias<\/em>, il met en sc\u00e8ne son mentor <strong>Socrate<\/strong> qui s\u2019oppose \u00e0 plusieurs sophistes pour d\u00e9monter leurs arguments. Selon Platon, les sophistes privil\u00e9gient l\u2019efficacit\u00e9 du discours et la volont\u00e9 de convaincre, \u00e0 la v\u00e9rit\u00e9.<\/p>\n<p>&nbsp;<\/p>\n<p><span style=\"font-weight: 400;\"><strong>Aristote<\/strong>, lui, est plut\u00f4t favorable aux techniques oratoires pour convaincre. Cependant, il consid\u00e8re que le rh\u00e9teur ne doit pas manipuler son auditoire par ses \u00e9motions :<\/span><\/p>\n<p>&nbsp;<\/p>\n<p><em><span style=\"font-weight: 400;\">\u00ab Ce serait comme de tordre la r\u00e8gle dont on s\u2019appr\u00eate \u00e0 se servir \u00bb.<\/span><\/em><\/p>\n\n        <\/div>\n              <\/section>\n\n\n<section class=\"read-also\">\n    <p class=\"read-also__title\">\u00c0 lire aussi<\/p>\n            <div class=\"read-also__list\">\n            <p><a href=\"https:\/\/sherpas.com\/blog\/lheritage-de-la-pensee-grecque-et-latine\/\">L&rsquo;h\u00e9ritage de la pens\u00e9e grecque et latine\ud83c\udfdb\ufe0f<\/a><\/p>\n\n        <\/div>\n    <\/section>\n\n\n\n<p>C\u2019est bien <a href=\"https:\/\/sherpas.com\/blog\/aristote-portrait\/\">Aristote <\/a>qui a, par la suite, expliqu\u00e9<strong> l\u2019utilit\u00e9 du syllogisme dans une d\u00e9monstration scientifique<\/strong>. Puisque c\u2019est un raisonnement presque math\u00e9matique, bas\u00e9 sur des faits et qui permet donc d\u2019aboutir \u00e0 une conclusion solide, le syllogisme permet de soutenir un raisonnement scientifique.&nbsp;\ud83d\udd2c<\/p>\n\n\n<section class=\"you-know\">\n                <div class=\"you-know__title\"><p>La rh\u00e9torique \ud83d\udc40<\/p>\n<\/div>\n                        <div class=\"you-know__text\">\n            <p><!-- wp:paragraph --><\/p>\n<p>La rh\u00e9torique \u00e9tait fondamentale dans la Gr\u00e8ce Antique. Il s\u2019agit d\u2019une <strong>pratique socialement codifi\u00e9e visant \u00e0 convaincre autrui<\/strong>. Ce sont toutes les techniques qui permettent de donner de la force \u00e0 un discours et le rendre plus percutant. C\u2019est Aristote qui a fix\u00e9 les r\u00e8gles de cet art oratoire.<\/p>\n<p>&nbsp;<\/p>\n<p><!-- \/wp:paragraph --> <!-- wp:paragraph --><\/p>\n<p>Les <strong>rh\u00e9teurs<\/strong> \u00e9taient donc ces<strong> orateurs tr\u00e8s \u00e9loquents<\/strong>, qui pouvaient enseigner les principes de la rh\u00e9torique. Aujourd\u2019hui, la rh\u00e9torique a parfois un sens p\u00e9joratif, avec l&rsquo;id\u00e9e qu&rsquo;elle sert \u00e0 manipuler l\u2019auditoire.<\/p>\n<p><!-- \/wp:paragraph --><\/p>\n\n        <\/div>\n              <\/section>\n\n\n<section class=\"push \">\n        <div >\n            \n                                                <div class=\"push__container  qcd\" data-target=\"_self\" data-qcd=\"aHR0cHM6Ly9zaGVycGFzLmNvbS9mdW5uZWwtc3R1ZGVudC1xdWFsaWZpY2F0aW9u\" data-banner=\"2\" data-name=\"Cours part&amp;rsquo; global #1 = CPG1\" style=\"background-color: #F3FBF7\" >\n                                                                        <div class=\"push__teachers\">\n    <div class=\"d-flex justify-content-center d-md-none\">\n        <img decoding=\"async\" class=\"push__logo\" src=\"\/content\/themes\/sherpas-theme\/dist\/images\/logo.svg\" alt=\"Logo Sherpas\">\n    <\/div>\n    <div class=\"swiper\">\n        <div class=\"swiper-wrapper\">\n                          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class=\"push__teachers-card\">\n                        <div\n                            class=\"push__teachers-profil\"\n                            \n                            style=\"background-image: url(https:\/\/sherpas.com\/content\/uploads\/2022\/01\/Pierre2x.png);\"\n                        >\n                    <\/div>\n                         <p class=\"push__teachers-name\">Pierre<\/p>                          <p class=\"push__teachers-school\">ESSEC<\/p>                                                     <div class=\"push__teachers-note\">\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                            <\/div>\n                                                 <p class=\"push__teachers-price\">16\u20ac\/h<\/p>                     <\/div>\n                <\/div>\n                                            <div class=\"swiper-slide\">\n                    <div class=\"push__teachers-card\">\n                        <div\n                            class=\"push__teachers-profil\"\n                            \n                            style=\"background-image: url(https:\/\/sherpas.com\/content\/uploads\/2022\/01\/Fanny2x.jpg);\"\n                        >\n                    <\/div>\n                         <p class=\"push__teachers-name\">Fanny<\/p>                          <p class=\"push__teachers-school\">Ponts ParisTech<\/p>                                                     <div class=\"push__teachers-note\">\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                            <\/div>\n                                                 <p class=\"push__teachers-price\">19\u20ac\/h<\/p>                     <\/div>\n                <\/div>\n                                            <div class=\"swiper-slide\">\n                    <div class=\"push__teachers-card\">\n                        <div\n                            class=\"push__teachers-profil\"\n                            \n                            style=\"background-image: url(https:\/\/sherpas.com\/content\/uploads\/2022\/01\/Jade2x.jpg);\"\n                        >\n                    <\/div>\n                         <p class=\"push__teachers-name\">Jade<\/p>                          <p class=\"push__teachers-school\">Sciences Po Paris<\/p>                                                     <div class=\"push__teachers-note\">\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                            <\/div>\n                                                 <p class=\"push__teachers-price\">21\u20ac\/h<\/p>                     <\/div>\n                <\/div>\n                                            <div class=\"swiper-slide\">\n                    <div class=\"push__teachers-card\">\n                        <div\n                            class=\"push__teachers-profil\"\n                            \n                            style=\"background-image: url(https:\/\/sherpas.com\/content\/uploads\/2022\/01\/Fabien2x.png);\"\n                        >\n                    <\/div>\n                         <p class=\"push__teachers-name\">Fabien<\/p>                          <p class=\"push__teachers-school\">T\u00e9l\u00e9com Paris<\/p>                                                     <div class=\"push__teachers-note\">\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                            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       class=\"push__teachers-profil\"\n                            \n                            style=\"background-image: url(https:\/\/sherpas.com\/content\/uploads\/2022\/01\/Jeanne2x.jpg);\"\n                        >\n                    <\/div>\n                         <p class=\"push__teachers-name\">Jeanne<\/p>                          <p class=\"push__teachers-school\">Aix-Marseille Universit\u00e9<\/p>                                                     <div class=\"push__teachers-note\">\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                            <\/div>\n                                                 <p class=\"push__teachers-price\">17\u20ac\/h<\/p>                     <\/div>\n                <\/div>\n                                            <div class=\"swiper-slide\">\n                    <div class=\"push__teachers-card\">\n                        <div\n                            class=\"push__teachers-profil\"\n                            \n                            style=\"background-image: url(https:\/\/sherpas.com\/content\/uploads\/2022\/01\/Bastien2x.jpg);\"\n                        >\n                    <\/div>\n                         <p class=\"push__teachers-name\">Bastien<\/p>                          <p class=\"push__teachers-school\">Polytechnique<\/p>                                                     <div class=\"push__teachers-note\">\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                            <\/div>\n                                                 <p class=\"push__teachers-price\">26\u20ac\/h<\/p>                     <\/div>\n                <\/div>\n                    <\/div>\n    <\/div>\n<\/div>\n                                                    <div class=\"push__content\">\n                                                            <div  class=\"d-none d-md-block\" >\n                                    <img decoding=\"async\" class=\"push__logo\" src=\"\/content\/themes\/sherpas-theme\/dist\/images\/logo.svg\"\n                                        alt=\"Logo Sherpas\">\n                                <\/div>\n                                                                                        <div class=\"push__title\"><p>Ton premier cours particulier est offert ! <span role=\"img\" aria-label=\"\ud83c\udf81\">\ud83c\udf81<\/span><!-- notionvc: 91b6b7d7-50f2-46f4-ae1f-ecbabe834aad --><\/p>\n<\/div>\n                                                                                        <div class=\"push__text\"><p>Nos profs sont pass\u00e9s par les meilleures \u00e9coles et universit\u00e9s.<!-- notionvc: 21bb66b6-b36d-4ce8-8950-173722d75a1e --><\/p>\n<p>&nbsp;<\/p>\n<\/div>\n                                                        <div class=\"push__promo-button   \">\n                                                                                                    <div\n                                        class=\"btn btn-primary\"\n                                        style=\"color: #ffffff; border-color: ; background-color: \"\n\n                                    >\n                                        J&rsquo;EN PROFITE MAINTENANT !\n                                    <\/div>\n                                                            <\/div>\n                                                    <\/div>\n                                    <\/div>\n                                    <\/div>\n    <\/section>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"la-formation-du-syllogisme\">La formation du syllogisme \u2795<\/h2>\n\n\n\n<p>Ainsi, comme tu as pu le comprendre, le syllogisme est form\u00e9 selon<strong> une logique presque math\u00e9matique<\/strong> : un syllogisme <strong>simple <\/strong>se construit donc toujours de la m\u00eame fa\u00e7on. \ud83e\udd13<\/p>\n\n\n\n<p><strong>Si B est A et que C est B et, alors C est A.<\/strong> <\/p>\n\n\n\n<p>Pour t\u2019expliquer la formation du syllogisme, tu peux t\u2019appuyer sur cette r\u00e9flexion logique :<\/p>\n\n\n\n<p>\ud83d\udc49 <strong>Tous les f\u00e9lins (B) sont des mammif\u00e8res (A). Or, les chats (C) sont des f\u00e9lins (B). Donc tous les chats (C) sont des mammif\u00e8res (A).<\/strong> \ud83d\udc08<br><\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"premisse-majeure-mineure-et-conclusion\">Pr\u00e9misse majeure, mineure et conclusion<br><\/h3>\n\n\n\n<p>Tu as pu comprendre que le syllogisme est d\u00e9coup\u00e9 en plusieurs parties : <strong>les pr\u00e9misses et la conclusion.<\/strong><\/p>\n\n\n\n<p>\u2705 Les pr\u00e9misses (ou propositions) sont appel\u00e9es <strong>pr\u00e9misse majeure et pr\u00e9misse mineure<\/strong> en fonction de leur r\u00f4le dans la phrase.<\/p>\n\n\n\n<p>\u27a1\ufe0f <strong>La pr\u00e9misse majeure : <\/strong>il s\u2019agit de la pr\u00e9misse principale, <strong>l\u2019affirmation la plus g\u00e9n\u00e9rale<\/strong> parmi les deux, et souvent situ\u00e9e en premier dans la d\u00e9monstration.<\/p>\n\n\n\n<p>Dans l\u2019exemple pr\u00e9c\u00e9dent, \u00e7a serait :<\/p>\n\n\n\n<p>\ud83d\udc49 Tous les f\u00e9lins sont des mammif\u00e8res.<br><\/p>\n\n\n\n<p>\u27a1\ufe0f <strong>La pr\u00e9misse mineure <\/strong>: elle est <strong>plus sp\u00e9cifique<\/strong> et entre dans le cadre pos\u00e9 par la pr\u00e9misse majeure.<\/p>\n\n\n\n<p>&nbsp;\ud83d\udc49 Les chats sont des f\u00e9lins.<\/p>\n\n\n\n<p>Ici tu peux constater que la phrase porte sur des cat\u00e9gories plus resserr\u00e9es, et li\u00e9es \u00e0 la pr\u00e9misse majeure.<br><\/p>\n\n\n\n<p><strong>L\u2019ordre entre les pr\u00e9misses n\u2019est pas fondamental<\/strong> et peut \u00eatre invers\u00e9 sans changer la valeur des pr\u00e9misses :<br><\/p>\n\n\n\n<p>\ud83d\udc49 Les chats sont des f\u00e9lins. Or, tous les f\u00e9lins sont des mammif\u00e8res. Donc tous les chats sont des mammif\u00e8res.<\/p>\n\n\n\n<p>\u27a1\ufe0f <strong>La conclusion<\/strong> : comme son nom l\u2019indique, c\u2019est la composante du syllogisme qui vient en dernier, pour conclure la r\u00e9flexion. <strong>C\u2019est un fait qui est tir\u00e9 logiquement des pr\u00e9misses, et qui est normalement irr\u00e9futable<\/strong> si les affirmations pr\u00e9c\u00e9dentes sont correctes.<\/p>\n\n\n\n<p>Ici, c\u2019est :<\/p>\n\n\n\n<p>\ud83d\udc49 Donc tous les chats sont des mammif\u00e8res.<br><\/p>\n\n\n<section class=\"relance\">\n        <div >\n                            <a target=\"_blank\" href=\"https:\/\/sherpas.com\/cours\/francais\">\n                    <div class=\"relance__container\"\n                        >\n                        \n                                                        <picture>\n                            <source srcset=\"https:\/\/sherpas.com\/content\/uploads\/2023\/06\/cours-particulier.jpg\" media=\"(min-width: 999px)\">\n                            <source srcset=\"https:\/\/sherpas.com\/content\/uploads\/2023\/06\/cours-particulier.jpg\" media=\"(max-width: 999px)\">\n                                <img decoding=\"async\"\n                                    src=\"https:\/\/sherpas.com\/content\/uploads\/2023\/06\/cours-particulier.jpg\"\n                                    alt=\"Cours particulier\"\n                                >\n                            <\/picture>\n                                                <div class=\"relance__content\">\n                            \n                                <div class=\"relance__title\"> <p>Tu gal\u00e8res en fran\u00e7ais ? Trouve ton prof particulier chez les Sherpas !<\/p>\n<\/div>\n                                                        <button type=\"button\"\n                                    class=\"relance__button btn btn-white\">\n                                Choisis ton prof ! \n                            <\/button>\n                        <\/div>\n                    <\/div>\n                <\/a>\n                    <\/div>\n    <\/section>\n\n    \n\n\n<h3 class=\"wp-block-heading\" id=\"grand-moyen-et-petit-terme\">Grand, moyen et petit terme<\/h3>\n\n\n\n<p>Tu peux reprendre l\u2019exemple pr\u00e9c\u00e9dent.<\/p>\n\n\n\n<p><strong>\ud83d\udc49<\/strong> <strong>Tous les f\u00e9lins (B) sont des mammif\u00e8res (A). Or, les chats (C) sont des f\u00e9lins (B). Donc tous les chats (C) sont des mammif\u00e8res (A).<\/strong><\/p>\n\n\n\n<p>\u2705 Les diff\u00e9rents termes A, B, C contenus dans le syllogisme ont chacun un r\u00f4le d\u00e9termin\u00e9 dans la r\u00e9flexion. Ils ne sont pas plac\u00e9s au hasard !<\/p>\n\n\n\n<p>Pour qu\u2019un syllogisme soit valable, <strong>chacune des deux pr\u00e9misses doit contenir un terme de la conclusion <\/strong>:<\/p>\n\n\n\n<p>\u27a1\ufe0f Le terme que l\u2019on retrouve <strong>\u00e0 la fois dans la majeure et dans la conclusion<\/strong> est appel\u00e9 <strong>grand terme<\/strong> (ou terme majeur) : c\u2019est le terme A, le plus g\u00e9n\u00e9ral, ici \u00ab mammif\u00e8re \u00bb.<\/p>\n\n\n\n<p>\u27a1\ufe0f Le terme que l\u2019on retrouve<strong> \u00e0 la fois dans la mineure et dans la conclusion<\/strong> est appel\u00e9 <strong>petit terme <\/strong>(ou terme mineur) : c\u2019est le terme C, le plus particulier, ici \u00ab chat \u00bb.<\/p>\n\n\n\n<p>\u27a1\ufe0f Le terme restant est <strong>celui qui appara\u00eet dans les deux pr\u00e9misses, appel\u00e9 terme moyen<\/strong>. C\u2019est celui qui permet de connecter la mineure et la majeure pour amener \u00e0 la conclusion : c\u2019est le terme B, ici \u00ab f\u00e9lin \u00bb.<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full is-resized\"><img decoding=\"async\" width=\"498\" height=\"378\" src=\"https:\/\/sherpas.com\/blog\/content\/uploads\/2023\/06\/ConnectingLoadingGIF.gif\" alt=\"chargement du terme moyen qui connecte les pr\u00e9misses\" class=\"wp-image-260050\" style=\"width:308px;height:234px\"\/><\/figure>\n<\/div>\n\n\n<p><\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"les-differentes-categories-de-syllogismes\">Les diff\u00e9rentes cat\u00e9gories de syllogismes <\/h2>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"les-modes-du-syllogisme\">Les modes du syllogisme<\/h3>\n\n\n\n<p>\u2705 Aristote a cat\u00e9goris\u00e9 les syllogismes selon 3 crit\u00e8res :<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>la place du terme<\/strong> <strong>moyen <\/strong>: s\u2019il est sujet ou pr\u00e9dicat (tout ce qui n\u2019est pas sujet) dans la proposition<\/li>\n\n\n\n<li><strong>la quantit\u00e9 des propositions<\/strong> : universelle (tous\u2026) ou particuli\u00e8re (certains\u2026)<\/li>\n\n\n\n<li><strong>la qualit\u00e9 des propositions<\/strong> : affirmative (sont) ou n\u00e9gative (ne sont pas)<\/li>\n<\/ol>\n\n\n\n<p>Tu as peut-\u00eatre d\u00e9j\u00e0 vu les mod\u00e8les introduits par les <strong>lettres AEIO<\/strong>. Ce sont des abr\u00e9viations pour d\u00e9signer chaque forme de pr\u00e9misse possibles :<\/p>\n\n\n\n<p>A = <strong>une proposition universelle affirmative : <\/strong>Tous les chats sont des f\u00e9lins. \ud83d\ude3a<\/p>\n\n\n\n<p>E = <strong>une proposition universelle n\u00e9gative <\/strong>: Aucune tortue n\u2019est un f\u00e9lin. \ud83d\udc22<\/p>\n\n\n\n<p>I = <strong>une proposition particuli\u00e8re affirmative :<\/strong> Certains chats sont gris.\ud83d\udc08\u200d\u2b1b<\/p>\n\n\n\n<p>O = <strong>une proposition particuli\u00e8re n\u00e9gative<\/strong> : Certains chats ne sont pas gris.\ud83d\udc08<\/p>\n\n\n\n<p>\u27a1\ufe0f Ainsi <strong>chaque mode du syllogisme sera identifi\u00e9 une combinaison de 3 lettres<\/strong>, chacune d\u00e9signant la pr\u00e9misse majeure, mineure et la conclusion :<br><\/p>\n\n\n\n<p>Tous les f\u00e9lins sont des mammif\u00e8res (\ud83c\udd70\ufe0f). Or, tous les chats sont des f\u00e9lins (\ud83c\udd70\ufe0f). Donc tous les chats sont des mammif\u00e8res (\ud83c\udd70\ufe0f). = \ud83c\udd70\ufe0f\ud83c\udd70\ufe0f\ud83c\udd70\ufe0f<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full is-resized\"><img decoding=\"async\" width=\"498\" height=\"399\" src=\"https:\/\/sherpas.com\/blog\/content\/uploads\/2023\/06\/AaAaaGIF.gif\" alt=\"chat qui crie AAA comme le mode du syllogisme\" class=\"wp-image-259997\" style=\"width:283px;height:227px\"\/><\/figure>\n<\/div>\n\n<section class=\"you-know\">\n                <div class=\"you-know__title\"><p>Le savais-tu ? \ud83d\udc40<\/p>\n<\/div>\n                        <div class=\"you-know__text\">\n            <p>En fonction de la place du moyen terme, des combinaisons de propositions et de la forme de la conclusion, il y a<strong> 512 modes de syllogismes possibles<\/strong> ! Heureusement, <strong>seuls 24<\/strong> ont \u00e9t\u00e9 d\u00e9termin\u00e9s comme valides.<\/p>\n\n        <\/div>\n              <\/section>\n\n\n<section class=\"push \">\n        <div >\n            \n                                                <div class=\"push__container  qcd\" data-target=\"_self\" data-qcd=\"aHR0cHM6Ly9zaGVycGFzLmNvbS9mdW5uZWwtc3R1ZGVudC1xdWFsaWZpY2F0aW9u\" data-banner=\"2\" data-name=\"Cours part&amp;rsquo; global #2 = CPG2\" style=\"background-color: #F3FBF7\" >\n                                                                        <div class=\"push__teachers\">\n    <div class=\"d-flex justify-content-center d-md-none\">\n        <img decoding=\"async\" class=\"push__logo\" src=\"\/content\/themes\/sherpas-theme\/dist\/images\/logo.svg\" alt=\"Logo Sherpas\">\n    <\/div>\n    <div class=\"swiper\">\n        <div class=\"swiper-wrapper\">\n                                            <div class=\"swiper-slide\">\n                    <div class=\"push__teachers-card\">\n                        <div\n                            class=\"push__teachers-profil\"\n                            \n                            style=\"background-image: url(https:\/\/sherpas.com\/content\/uploads\/2022\/01\/Cle\u0301mence2x.png);\"\n                        >\n                    <\/div>\n                         <p class=\"push__teachers-name\">Cl\u00e9mence<\/p>                          <p class=\"push__teachers-school\">HEC Paris<\/p>                                                     <div class=\"push__teachers-note\">\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n          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               xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                            <\/div>\n                                                 <p class=\"push__teachers-price\">21\u20ac\/h\/h<\/p>                     <\/div>\n                <\/div>\n                                            <div class=\"swiper-slide\">\n                    <div class=\"push__teachers-card\">\n                        <div\n                            class=\"push__teachers-profil\"\n                            \n                            style=\"background-image: url(https:\/\/sherpas.com\/content\/uploads\/2022\/01\/Thibault2x.png);\"\n                        >\n                    <\/div>\n                         <p class=\"push__teachers-name\">Thibault<\/p>                          <p class=\"push__teachers-school\">ENS Paris Ulm<\/p>                                                     <div class=\"push__teachers-note\">\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                            <\/div>\n                                                 <p class=\"push__teachers-price\">20\u20ac\/h<\/p>                     <\/div>\n                <\/div>\n                                            <div class=\"swiper-slide\">\n                    <div class=\"push__teachers-card\">\n                        <div\n                            class=\"push__teachers-profil\"\n                            \n                            style=\"background-image: url(https:\/\/sherpas.com\/content\/uploads\/2022\/01\/Sophie2x.png);\"\n                        >\n                    <\/div>\n                         <p class=\"push__teachers-name\">Sophie<\/p>                          <p class=\"push__teachers-school\">Sciences Po Bordeaux<\/p>                                                     <div class=\"push__teachers-note\">\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                            <\/div>\n                                                 <p class=\"push__teachers-price\">12\u20ac\/h<\/p>                     <\/div>\n                <\/div>\n                                            <div class=\"swiper-slide\">\n                    <div class=\"push__teachers-card\">\n                        <div\n                            class=\"push__teachers-profil\"\n                            \n                            style=\"background-image: url(https:\/\/sherpas.com\/content\/uploads\/2022\/01\/Noemie2x.jpg);\"\n                        >\n                    <\/div>\n                         <p class=\"push__teachers-name\">No\u00e9mie<\/p>                          <p class=\"push__teachers-school\">M2 en droit \u00e0 Assas<\/p>                                                     <div class=\"push__teachers-note\">\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                            <\/div>\n                                                 <p class=\"push__teachers-price\">19\u20ac\/h<\/p>                     <\/div>\n                <\/div>\n                                            <div class=\"swiper-slide\">\n                    <div class=\"push__teachers-card\">\n                        <div\n                            class=\"push__teachers-profil\"\n                            \n                            style=\"background-image: url(https:\/\/sherpas.com\/content\/uploads\/2022\/01\/Fanny2x.jpg);\"\n                        >\n                    <\/div>\n                         <p class=\"push__teachers-name\">Fanny<\/p>                          <p class=\"push__teachers-school\">Ponts ParisTech<\/p>                                                     <div class=\"push__teachers-note\">\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                            <\/div>\n                                                 <p class=\"push__teachers-price\">19\u20ac\/h<\/p>                     <\/div>\n                <\/div>\n                                            <div class=\"swiper-slide\">\n                    <div class=\"push__teachers-card\">\n                        <div\n                            class=\"push__teachers-profil\"\n                            \n                            style=\"background-image: url(https:\/\/sherpas.com\/content\/uploads\/2022\/01\/Simon2x.jpg);\"\n                        >\n                    <\/div>\n                         <p class=\"push__teachers-name\">Simon<\/p>                          <p class=\"push__teachers-school\">4e ann\u00e9e de m\u00e9decine<\/p>                                                     <div class=\"push__teachers-note\">\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                            <\/div>\n                                                 <p class=\"push__teachers-price\">26\u20ac\/h<\/p>                     <\/div>\n                <\/div>\n                                            <div class=\"swiper-slide\">\n                    <div class=\"push__teachers-card\">\n                        <div\n                            class=\"push__teachers-profil\"\n                            \n                            style=\"background-image: url(https:\/\/sherpas.com\/content\/uploads\/2022\/01\/Nicolas2x.png);\"\n                        >\n                    <\/div>\n                         <p class=\"push__teachers-name\">Nicolas<\/p>                          <p class=\"push__teachers-school\">CentraleSup\u00e9lec<\/p>                                                     <div class=\"push__teachers-note\">\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                            <\/div>\n                                                 <p class=\"push__teachers-price\">17\u20ac\/h<\/p>                     <\/div>\n                <\/div>\n                                            <div class=\"swiper-slide\">\n                    <div class=\"push__teachers-card\">\n                        <div\n                            class=\"push__teachers-profil\"\n                            \n                            style=\"background-image: url(https:\/\/sherpas.com\/content\/uploads\/2022\/01\/Victor2x.jpg);\"\n                        >\n                    <\/div>\n                         <p class=\"push__teachers-name\">Victor<\/p>                          <p class=\"push__teachers-school\">ESCP<\/p>                                                     <div class=\"push__teachers-note\">\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                 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       <div  class=\"d-none d-md-block\" >\n                                    <img decoding=\"async\" class=\"push__logo\" src=\"\/content\/themes\/sherpas-theme\/dist\/images\/logo.svg\"\n                                        alt=\"Logo Sherpas\">\n                                <\/div>\n                                                                                        <div class=\"push__title\"><p>Besoin d&rsquo;un prof particulier ? <span role=\"img\" aria-label=\"\u2728\">\u2728<\/span><!-- notionvc: 9b5ed38b-ea2e-4d3c-a3bb-f0091c2eedd2 --><\/p>\n<\/div>\n                                                                                        <div class=\"push__text\"><p>Nos profs sont l\u00e0 pour t&rsquo;aider \u00e0 progresser !<\/p>\n<p>&nbsp;<\/p>\n<p><!-- notionvc: 20490bdd-6579-484b-9d99-0ff0bc1aa8e7 --><\/p>\n<\/div>\n                                                        <div class=\"push__promo-button   \">\n                                                                                                    <div\n                                        class=\"btn btn-primary\"\n                                        style=\"color: ; border-color: ; background-color: \"\n\n                                    >\n                                        JE PRENDS UN COURS OFFERT !\n                                    <\/div>\n                                                            <\/div>\n                                                    <\/div>\n                                    <\/div>\n                                    <\/div>\n    <\/section>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"quelques-types-de-syllogisme\">Quelques types de syllogisme<\/h3>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"les-syllogismes-categoriques\"><strong>\u2757Les syllogismes cat\u00e9goriques<\/strong><\/h4>\n\n\n\n<p>Ils ne contiennent<strong> ni condition ni alternative.<\/strong> Ils permettent d\u2019arriver \u00e0 une conclusion simple et directe, sans d\u00e9tour :<\/p>\n\n\n\n<p>\ud83d\udc49 Tous les f\u00e9lins sont des mammif\u00e8res. Or tous les chats sont des f\u00e9lins. Donc tous les chats sont des mammif\u00e8res.<\/p>\n\n\n\n<p><strong>\u2753 Les syllogismes hypoth\u00e9tiques<\/strong><\/p>\n\n\n\n<p>La conclusion auxquels ils aboutissent est<strong> issue d\u2019une ou deux hypoth\u00e8ses.<\/strong><\/p>\n\n\n\n<p>\ud83d\udc49 <strong>Si <\/strong>tu ne mets pas ton r\u00e9veil, tu vas rester endormi. <strong>Si <\/strong>tu restes endormi, tu vas rater ton examen. Donc si tu ne mets pas ton r\u00e9veil, tu vas rater ton examen.<br><\/p>\n\n\n\n<p>\u26a0\ufe0f Ces syllogismes sont risqu\u00e9s, car ils<strong> partent du principe que l\u2019hypoth\u00e8se formul\u00e9e est correcte.<\/strong> Or il est possible qu\u2019une hypoth\u00e8se s\u2019av\u00e8re fausse et donc que la conclusion ne soit pas valable<\/p>\n\n\n\n<p>Par exemple, tu pourrais \u00eatre r\u00e9veill\u00e9 par autre chose que ton r\u00e9veil (ton chien, tes parents\u2026). <\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><img decoding=\"async\" width=\"232\" height=\"410\" src=\"https:\/\/sherpas.com\/blog\/content\/uploads\/2023\/06\/AllezDeboutGIF.gif\" alt=\"chien qui r\u00e9veille l'homme malgr\u00e9 le syllogisme hypoth\u00e9tique\" class=\"wp-image-260002\"\/><\/figure>\n<\/div>\n\n\n<p><strong>\u2b55 Les syllogismes disjonctifs<\/strong><\/p>\n\n\n\n<p>Une de ses pr\u00e9misses contient une disjonction, c&rsquo;est-\u00e0-dire <strong>une situation qui pr\u00e9sente 2 \u00e9tats, o\u00f9 si l\u2019un est faux alors l\u2019autre est vrai<\/strong>. En g\u00e9n\u00e9ral, on le rep\u00e8re avec la structure <strong>\u00ab soit\u2026 soit \u00bb, ou \u00ab ou bien&#8230; \u00bb.<\/strong><\/p>\n\n\n\n<p>\ud83d\udc49 Soit l\u2019enfant finit son assiette, soit il est puni. Il n\u2019a pas fini son assiette. Donc il est puni.<\/p>\n\n\n\n<p>\u26a0\ufe0f Un des risques de cette forme de syllogisme est qu\u2019elle cache<strong> une autre possibilit\u00e9 qui n\u2019est pas formul\u00e9e.<\/strong> La conclusion tir\u00e9e ne serait alors pas valable.<\/p>\n\n\n\n<p>\ud83d\udc49 Soit tu as froid, soit tu as chaud. Tu n\u2019as pas chaud. Donc tu as froid.<\/p>\n\n\n\n<p>Ici, le syllogisme part du principe qu\u2019il n\u2019existe que deux \u00e9tats (froid et chaud)<strong> alors qu\u2019il existe un entre-deux.<\/strong><br><\/p>\n\n\n<section class=\"relance\">\n        <div >\n                            <a target=\"_blank\" href=\"https:\/\/sherpas.com\/blog\/guide-matieres-lycee\/\">\n                    <div class=\"relance__container\"\n                        >\n                        \n                                                        <picture>\n                            <source srcset=\"https:\/\/sherpas.com\/content\/uploads\/2023\/04\/ebook-epreuves-du-bac.png\" media=\"(min-width: 999px)\">\n                            <source srcset=\"https:\/\/sherpas.com\/content\/uploads\/2023\/04\/ebook-epreuves-du-bac.png\" media=\"(max-width: 999px)\">\n                                <img decoding=\"async\"\n                                    src=\"https:\/\/sherpas.com\/content\/uploads\/2023\/04\/ebook-epreuves-du-bac.png\"\n                                    alt=\"\"\n                                >\n                            <\/picture>\n                                                <div class=\"relance__content\">\n                            \n                                <div class=\"relance__title\"> <p>Tu veux \u00eatre par\u00e9 pour le Bac ? T\u00e9l\u00e9charge notre guide ultime <span style=\"font-weight: 400\">\u00ab \u00c9preuves du Bac \u00bb.<\/span><\/p>\n<\/div>\n                                                        <button type=\"button\"\n                                    class=\"relance__button btn btn-white\">\n                                T\u00e9l\u00e9charge ton guide\n                            <\/button>\n                        <\/div>\n                    <\/div>\n                <\/a>\n                    <\/div>\n    <\/section>\n\n    \n\n\n<h2 class=\"wp-block-heading\" id=\"utilisation-et-limites-du-syllogisme-dans-le-debat\">Utilisation et limites du syllogisme dans le d\u00e9bat<\/h2>\n\n\n\n<p><strong><strong>\u26a0\ufe0f<\/strong><\/strong> <strong>Attention, on ne construit pas un syllogisme n\u2019importe comment. Pour qu\u2019il soit valable, il y a plusieurs r\u00e8gles \u00e0 respecter. <\/strong><\/p>\n\n\n\n<p>\u2705 <strong>Des r\u00e8gles de forme :<\/strong><\/p>\n\n\n\n<p>\u27a1\ufe0f <strong>Si une des deux propositions est n\u00e9gative, la deuxi\u00e8me sera obligatoirement positive<\/strong>. Il est impossible de tirer une conclusion de deux pr\u00e9misses n\u00e9gatives.<\/p>\n\n\n\n<p>\ud83d\udc49 Les oiseaux ne sont pas des mammif\u00e8res. Or les tortues ne sont pas des oiseaux. Donc les tortues sont des mammif\u00e8res.<\/p>\n\n\n\n<p>Ici, il y a une conclusion qui, par hasard, pourrait \u00eatre vraie (par exemple en rempla\u00e7ant tortue par chat), mais qui n\u2019est pas une conclusion in\u00e9vitable. En disant ce qu\u2019une chose<em> n\u2019est pas<\/em>, tu ne dis pas ce qu\u2019elle <em>est<\/em>.<\/p>\n\n\n\n<p><br>\u27a1\ufe0f <strong>Si les deux pr\u00e9misses sont positives, alors la conclusion le sera aussi.<\/strong><\/p>\n\n\n\n<p>\u27a1\ufe0f <strong>Il ne peut y avoir deux pr\u00e9misses qui portent sur des termes particuliers<\/strong> : il faut obligatoirement qu\u2019une des deux propositions soit g\u00e9n\u00e9rale, sans quoi il n\u2019y aura pas de lien entre elles.<\/p>\n\n\n\n<p>\ud83d\udc49 Les chats sont des mammif\u00e8res. Les tortues sont des reptiles. <\/p>\n\n\n\n<p>Ici il n&rsquo;y a pas aucune conclusion logique que tu pourrais tirer de ces pr\u00e9misses.<br><\/p>\n\n\n\n<p>\u27a1\ufe0f <strong>Il n\u2019est pas possible de tirer une conclusion g\u00e9n\u00e9rale \u00e0 partir d\u2019un \u00e9l\u00e9ment particulier<\/strong> :<\/p>\n\n\n\n<p>\ud83d\udc49 Tous les tigres sont des f\u00e9lins. Un chat est un f\u00e9lin. Donc tous les chats sont des tigres.<\/p>\n\n\n\n<p>On appelle cela un <strong>paralogisme<\/strong>. Ici f\u00e9lin est un attribut du chat, mais il ne lui est pas exclusif ! De nombreux animaux peuvent \u00eatre des f\u00e9lins sans \u00eatre des chats.<\/p>\n\n\n\n<p><\/p>\n\n\n\n<p>\u2705 <strong>Des r\u00e8gles de fond :<\/strong><\/p>\n\n\n\n<p>\u27a1\ufe0f Comme tu as pu le comprendre,<strong> toutes les pr\u00e9misses doivent \u00eatre v\u00e9ridiques<\/strong>. En effet, je peux tirer une conclusion logique et in\u00e9vitable de propositions qui sont fausses.<\/p>\n\n\n\n<p>Ex : Tous les oiseaux sont des mammif\u00e8res. Or les pigeons sont des oiseaux. Donc les pigeons sont des mammif\u00e8res.<\/p>\n\n\n\n<p>\u00c9videmment les oiseaux ne sont pas des mammif\u00e8res, donc la conclusion sera fausse alors que le raisonnement est logique. <strong>On dit alors que le syllogisme est valide, mais qu\u2019il n\u2019est pas concluant.<\/strong><\/p>\n\n\n\n<p>\u27a1\ufe0f Dans la m\u00eame logique, il faut faire<strong> attention aux sophismes (ou faux dilemmes).<\/strong> Comme \u00e9voqu\u00e9 dans le cas du syllogisme disjonctif, il s\u2019agit d\u2019une situation ou l\u2019on r\u00e9duit les possibilit\u00e9s \u00e0 <strong>deux choix mutuellement exclusifs<\/strong>. Souvent, c\u2019est parce que tu veux forcer ton adversaire \u00e0 prendre position sur l\u2019une ou l\u2019autre possibilit\u00e9, sans consid\u00e9rer l\u2019existence d\u2019une troisi\u00e8me voie.<\/p>\n\n\n\n<p>Un exemple un peu extr\u00eame :&nbsp;<\/p>\n\n\n\n<p>\ud83d\udc49 Soit tu es pour la libert\u00e9 d\u2019expression, soit tu es pour la dictature. Tu veux encadrer la libert\u00e9 d\u2019expression ? Alors tu es pour la dictature.<\/p>\n\n\n\n<p>Ce dilemme n\u2019est pas valable puisque l\u2019on peut par exemple mettre en place des r\u00e8gles (comme interdire les incitations \u00e0 la haine) sans avoir une dictature. Mais cela force l\u2019adversaire \u00e0 se justifier, surtout sur un sujet sensible, et \u00e0 perdre du temps de parole par exemple.<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full is-resized\"><img decoding=\"async\" width=\"440\" height=\"498\" src=\"https:\/\/sherpas.com\/blog\/content\/uploads\/2023\/06\/DeanWinchesterGIF.gif\" alt=\"homme tromp\u00e9 par le sophisme et qui pense \u00eatre en dictature\" class=\"wp-image-260051\" style=\"width:251px;height:284px\"\/><\/figure>\n<\/div>\n\n\n<p>Tous ces syllogismes non concluants peuvent \u00eatre<strong> utilis\u00e9s volontairement par l\u2019orateur<\/strong> pour faire passer ses arguments comme logiques m\u00eame s\u2019ils sont infond\u00e9s.<\/p>\n\n\n\n<p><\/p>\n\n\n\n<p>Avant de partir, voici quelques questions pour voir si tu as bien tout retenu ! <\/p>\n\n\n\n<style>@media screen and (max-width: 640px){#og_iframe{height: 500px;width:100%;}}@media screen and (min-width: 641px) and (max-width: 1024px){#og_iframe{height: 500px;width:100%;}}@media screen and (min-width: 1025px){#og_iframe{height: 500px;width:100%;}}<\/style><div id='og_iframe' style='-webkit-overflow-scrolling: touch; overflow: auto;'><iframe title=\"Le syllogisme\" src='https:\/\/lessherpas.outgrow.us\/66c5e642ee96f0c57b71a9b3?custom=1' style='border: none; overflow: hidden; width:100%; height: calc(100% - 31px);' scrolling='yes' allow=\"camera *;\"><\/iframe><\/div>\n\n\n<section class=\"read-also\">\n    <p class=\"read-also__title\">\u00c0 lire aussi<\/p>\n            <div class=\"read-also__list\">\n            <p><a href=\"https:\/\/sherpas.com\/blog\/phrase-daccroche\/\">Comment r\u00e9diger la meilleure phrase d&rsquo;accroche ? \ud83e\udd14<\/a><\/p>\n\n        <\/div>\n    <\/section>\n\n\n\n<p>Et voil\u00e0, maintenant tu es pr\u00eat \u00e0 cr\u00e9er tes meilleures argumentations \u00e0 l\u2019aide du syllogisme ! \ud83d\ude0e<\/p>\n\n\n<div class=\"kk-star-ratings kksr-auto kksr-align-center kksr-valign-bottom\"\n    data-payload='{&quot;align&quot;:&quot;center&quot;,&quot;id&quot;:&quot;259986&quot;,&quot;slug&quot;:&quot;default&quot;,&quot;valign&quot;:&quot;bottom&quot;,&quot;ignore&quot;:&quot;&quot;,&quot;reference&quot;:&quot;auto&quot;,&quot;class&quot;:&quot;&quot;,&quot;count&quot;:&quot;5&quot;,&quot;legendonly&quot;:&quot;&quot;,&quot;readonly&quot;:&quot;&quot;,&quot;score&quot;:&quot;4.6&quot;,&quot;starsonly&quot;:&quot;&quot;,&quot;best&quot;:&quot;5&quot;,&quot;gap&quot;:&quot;5&quot;,&quot;greet&quot;:&quot;Tu as aim\u00e9 cet article ?&quot;,&quot;legend&quot;:&quot;4.6\\\/5 - (5 votes)&quot;,&quot;size&quot;:&quot;24&quot;,&quot;title&quot;:&quot;Le syllogisme : la logique incarn\u00e9e !&quot;,&quot;width&quot;:&quot;130.9&quot;,&quot;_legend&quot;:&quot;{score}\\\/{best} - ({count} {votes})&quot;,&quot;font_factor&quot;:&quot;1.25&quot;}'>\n            \n<div class=\"kksr-stars\">\n    \n<div class=\"kksr-stars-inactive\">\n            <div class=\"kksr-star\" data-star=\"1\" style=\"padding-right: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 24px; height: 24px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" data-star=\"2\" style=\"padding-right: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 24px; height: 24px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" data-star=\"3\" style=\"padding-right: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 24px; height: 24px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" data-star=\"4\" style=\"padding-right: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 24px; height: 24px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" data-star=\"5\" style=\"padding-right: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 24px; height: 24px;\"><\/div>\n        <\/div>\n    <\/div>\n    \n<div class=\"kksr-stars-active\" style=\"width: 130.9px;\">\n            <div class=\"kksr-star\" style=\"padding-right: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 24px; height: 24px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" style=\"padding-right: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 24px; height: 24px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" style=\"padding-right: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 24px; height: 24px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" style=\"padding-right: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 24px; height: 24px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" style=\"padding-right: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 24px; height: 24px;\"><\/div>\n        <\/div>\n    <\/div>\n<\/div>\n                \n\n<div class=\"kksr-legend\" style=\"font-size: 19.2px;\">\n            4.6\/5 - (5 votes)    <\/div>\n    <\/div>\n","protected":false},"excerpt":{"rendered":"<p>Syllo-quoi ? Si le mot de syllogisme te rend perplexe, ou que tu l\u2019as d\u00e9j\u00e0 vaguement entendu sans (&#8230;)<\/p>\n","protected":false},"author":326,"featured_media":259988,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":true,"footnotes":""},"category":[803,805],"tag":[],"class_list":["post-259986","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-apprendre-matiere","category-francais"],"acf":[],"_links":{"self":[{"href":"https:\/\/sherpas.com\/blog\/wp-json\/wp\/v2\/posts\/259986","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/sherpas.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/sherpas.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/sherpas.com\/blog\/wp-json\/wp\/v2\/users\/326"}],"replies":[{"embeddable":true,"href":"https:\/\/sherpas.com\/blog\/wp-json\/wp\/v2\/comments?post=259986"}],"version-history":[{"count":0,"href":"https:\/\/sherpas.com\/blog\/wp-json\/wp\/v2\/posts\/259986\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/sherpas.com\/blog\/wp-json\/wp\/v2\/media\/259988"}],"wp:attachment":[{"href":"https:\/\/sherpas.com\/blog\/wp-json\/wp\/v2\/media?parent=259986"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/sherpas.com\/blog\/wp-json\/wp\/v2\/category?post=259986"},{"taxonomy":"tag","embeddable":true,"href":"https:\/\/sherpas.com\/blog\/wp-json\/wp\/v2\/tag?post=259986"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}