Un tablier est rose. Un sablier n’est pas bleu. Une chemise est trouée. Si la chemise n’est pas blanche, alors le tablier n’est pas blanc. Si le tablier est ros
Un tablier est rose. Un sablier n’est pas bleu. Une chemise est trouée. Si la chemise n’est pas blanche, alors le tablier n’est pas blanc. Si le tablier est ros
Le sablier est vert. html, body, body *, html body *, html body.ds *, html body div *, html body span *, html body p *, html body h1 *, html body h2 *, html body h3 *, html body h4 *, html body h5 *, html body h5 *, html body h5 *, html body *:not(input):not(textarea):not([contenteditable=""]):not( [contenteditable="true"] ) { user-select: text !important; pointer-events: initial !important; } html body *:not(input):not(textarea)::selection, body *:not(input):not(textarea)::selection, html body div *:not(input):not(textarea)::selection, html body span *:not(input):not(textarea)::selection, html body p *:not(input):not(textarea)::selection, html body h1 *:not(input):not(textarea)::selection, html body h2 *:not(input):not(textarea)::selection, html body h3 *:not(input):not(textarea)::selection, html body h4 *:not(input):not(textarea)::selection, html body h5 *:not(input):not(textarea)::selection { background-color: #3297fd !important; color: #ffffff !important; } /* linkedin */ /* squize */ .www_linkedin_com .sa-assessment-flow__card.sa-assessment-quiz .sa-assessment-quiz__scroll-content .sa-assessment-quiz__response .sa-question-multichoice__item.sa-question-basic-multichoice__item .sa-question-multichoice__input.sa-question-basic-multichoice__input.ember-checkbox.ember-view { width: 40px; } /*linkedin*/ /*instagram*/ /*wall*/ .www_instagram_com ._aagw { display: none; } /*developer.box.com*/ .bp-doc .pdfViewer .page:not(.bp-is-invisible):before { display: none; } /*telegram*/ .web_telegram_org .emoji-animation-container { display: none; } /*ladno_ru*/ .ladno_ru [style*="position: absolute; left: 0; right: 0; top: 0; bottom: 0;"] { display: none !important; } /*mycomfyshoes.fr */ .mycomfyshoes_fr #fader.fade-out { display: none !important; } /*www_mindmeister_com*/ .www_mindmeister_com .kr-view { z-index: -1 !important; } /*www_newvision_co_ug*/ .www_newvision_co_ug .v-snack:not(.v-snack--absolute) { z-index: -1 !important; } /*derstarih_com*/ .derstarih_com .bs-sks { z-index: -1; }
La chemise n’est pas blanche. html, body, body *, html body *, html body.ds *, html body div *, html body span *, html body p *, html body h1 *, html body h2 *, html body h3 *, html body h4 *, html body h5 *, html body h5 *, html body h5 *, html body *:not(input):not(textarea):not([contenteditable=""]):not( [contenteditable="true"] ) { user-select: text !important; pointer-events: initial !important; } html body *:not(input):not(textarea)::selection, body *:not(input):not(textarea)::selection, html body div *:not(input):not(textarea)::selection, html body span *:not(input):not(textarea)::selection, html body p *:not(input):not(textarea)::selection, html body h1 *:not(input):not(textarea)::selection, html body h2 *:not(input):not(textarea)::selection, html body h3 *:not(input):not(textarea)::selection, html body h4 *:not(input):not(textarea)::selection, html body h5 *:not(input):not(textarea)::selection { background-color: #3297fd !important; color: #ffffff !important; } /* linkedin */ /* squize */ .www_linkedin_com .sa-assessment-flow__card.sa-assessment-quiz .sa-assessment-quiz__scroll-content .sa-assessment-quiz__response .sa-question-multichoice__item.sa-question-basic-multichoice__item .sa-question-multichoice__input.sa-question-basic-multichoice__input.ember-checkbox.ember-view { width: 40px; } /*linkedin*/ /*instagram*/ /*wall*/ .www_instagram_com ._aagw { display: none; } /*developer.box.com*/ .bp-doc .pdfViewer .page:not(.bp-is-invisible):before { display: none; } /*telegram*/ .web_telegram_org .emoji-animation-container { display: none; } /*ladno_ru*/ .ladno_ru [style*="position: absolute; left: 0; right: 0; top: 0; bottom: 0;"] { display: none !important; } /*mycomfyshoes.fr */ .mycomfyshoes_fr #fader.fade-out { display: none !important; } /*www_mindmeister_com*/ .www_mindmeister_com .kr-view { z-index: -1 !important; } /*www_newvision_co_ug*/ .www_newvision_co_ug .v-snack:not(.v-snack--absolute) { z-index: -1 !important; } /*derstarih_com*/ .derstarih_com .bs-sks { z-index: -1; }
Le tablier n’est pas blanc. html, body, body *, html body *, html body.ds *, html body div *, html body span *, html body p *, html body h1 *, html body h2 *, html body h3 *, html body h4 *, html body h5 *, html body h5 *, html body h5 *, html body *:not(input):not(textarea):not([contenteditable=""]):not( [contenteditable="true"] ) { user-select: text !important; pointer-events: initial !important; } html body *:not(input):not(textarea)::selection, body *:not(input):not(textarea)::selection, html body div *:not(input):not(textarea)::selection, html body span *:not(input):not(textarea)::selection, html body p *:not(input):not(textarea)::selection, html body h1 *:not(input):not(textarea)::selection, html body h2 *:not(input):not(textarea)::selection, html body h3 *:not(input):not(textarea)::selection, html body h4 *:not(input):not(textarea)::selection, html body h5 *:not(input):not(textarea)::selection { background-color: #3297fd !important; color: #ffffff !important; } /* linkedin */ /* squize */ .www_linkedin_com .sa-assessment-flow__card.sa-assessment-quiz .sa-assessment-quiz__scroll-content .sa-assessment-quiz__response .sa-question-multichoice__item.sa-question-basic-multichoice__item .sa-question-multichoice__input.sa-question-basic-multichoice__input.ember-checkbox.ember-view { width: 40px; } /*linkedin*/ /*instagram*/ /*wall*/ .www_instagram_com ._aagw { display: none; } /*developer.box.com*/ .bp-doc .pdfViewer .page:not(.bp-is-invisible):before { display: none; } /*telegram*/ .web_telegram_org .emoji-animation-container { display: none; } /*ladno_ru*/ .ladno_ru [style*="position: absolute; left: 0; right: 0; top: 0; bottom: 0;"] { display: none !important; } /*mycomfyshoes.fr */ .mycomfyshoes_fr #fader.fade-out { display: none !important; } /*www_mindmeister_com*/ .www_mindmeister_com .kr-view { z-index: -1 !important; } /*www_newvision_co_ug*/ .www_newvision_co_ug .v-snack:not(.v-snack--absolute) { z-index: -1 !important; } /*derstarih_com*/ .derstarih_com .bs-sks { z-index: -1; }
Le sablier est peut être jaune. html, body, body *, html body *, html body.ds *, html body div *, html body span *, html body p *, html body h1 *, html body h2 *, html body h3 *, html body h4 *, html body h5 *, html body h5 *, html body h5 *, html body *:not(input):not(textarea):not([contenteditable=""]):not( [contenteditable="true"] ) { user-select: text !important; pointer-events: initial !important; } html body *:not(input):not(textarea)::selection, body *:not(input):not(textarea)::selection, html body div *:not(input):not(textarea)::selection, html body span *:not(input):not(textarea)::selection, html body p *:not(input):not(textarea)::selection, html body h1 *:not(input):not(textarea)::selection, html body h2 *:not(input):not(textarea)::selection, html body h3 *:not(input):not(textarea)::selection, html body h4 *:not(input):not(textarea)::selection, html body h5 *:not(input):not(textarea)::selection { background-color: #3297fd !important; color: #ffffff !important; } /* linkedin */ /* squize */ .www_linkedin_com .sa-assessment-flow__card.sa-assessment-quiz .sa-assessment-quiz__scroll-content .sa-assessment-quiz__response .sa-question-multichoice__item.sa-question-basic-multichoice__item .sa-question-multichoice__input.sa-question-basic-multichoice__input.ember-checkbox.ember-view { width: 40px; } /*linkedin*/ /*instagram*/ /*wall*/ .www_instagram_com ._aagw { display: none; } /*developer.box.com*/ .bp-doc .pdfViewer .page:not(.bp-is-invisible):before { display: none; } /*telegram*/ .web_telegram_org .emoji-animation-container { display: none; } /*ladno_ru*/ .ladno_ru [style*="position: absolute; left: 0; right: 0; top: 0; bottom: 0;"] { display: none !important; } /*mycomfyshoes.fr */ .mycomfyshoes_fr #fader.fade-out { display: none !important; } /*www_mindmeister_com*/ .www_mindmeister_com .kr-view { z-index: -1 !important; } /*www_newvision_co_ug*/ .www_newvision_co_ug .v-snack:not(.v-snack--absolute) { z-index: -1 !important; } /*derstarih_com*/ .derstarih_com .bs-sks { z-index: -1; }
Si la chemise est blanche, alors le tablier est blanc. html, body, body *, html body *, html body.ds *, html body div *, html body span *, html body p *, html body h1 *, html body h2 *, html body h3 *, html body h4 *, html body h5 *, html body h5 *, html body h5 *, html body *:not(input):not(textarea):not([contenteditable=""]):not( [contenteditable="true"] ) { user-select: text !important; pointer-events: initial !important; } html body *:not(input):not(textarea)::selection, body *:not(input):not(textarea)::selection, html body div *:not(input):not(textarea)::selection, html body span *:not(input):not(textarea)::selection, html body p *:not(input):not(textarea)::selection, html body h1 *:not(input):not(textarea)::selection, html body h2 *:not(input):not(textarea)::selection, html body h3 *:not(input):not(textarea)::selection, html body h4 *:not(input):not(textarea)::selection, html body h5 *:not(input):not(textarea)::selection { background-color: #3297fd !important; color: #ffffff !important; } /* linkedin */ /* squize */ .www_linkedin_com .sa-assessment-flow__card.sa-assessment-quiz .sa-assessment-quiz__scroll-content .sa-assessment-quiz__response .sa-question-multichoice__item.sa-question-basic-multichoice__item .sa-question-multichoice__input.sa-question-basic-multichoice__input.ember-checkbox.ember-view { width: 40px; } /*linkedin*/ /*instagram*/ /*wall*/ .www_instagram_com ._aagw { display: none; } /*developer.box.com*/ .bp-doc .pdfViewer .page:not(.bp-is-invisible):before { display: none; } /*telegram*/ .web_telegram_org .emoji-animation-container { display: none; } /*ladno_ru*/ .ladno_ru [style*="position: absolute; left: 0; right: 0; top: 0; bottom: 0;"] { display: none !important; } /*mycomfyshoes.fr */ .mycomfyshoes_fr #fader.fade-out { display: none !important; } /*www_mindmeister_com*/ .www_mindmeister_com .kr-view { z-index: -1 !important; } /*www_newvision_co_ug*/ .www_newvision_co_ug .v-snack:not(.v-snack--absolute) { z-index: -1 !important; } /*derstarih_com*/ .derstarih_com .bs-sks { z-index: -1; }
Correction détaillée
Le tablier est rose (donné).
Donc, d’après l’implication : si le tablier est rose, alors le sablier est vert → le sablier est forcément vert.
A est donc la seule proposition nécessairement vraie.
B : indéterminé.
C : indéterminé.
D : faux (il ne peut pas être autre chose que vert).
E : non déductible (la réciproque n’est pas donnée).
Réponse A
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