maths (il etait une fois)

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Last updated 4:50 PM on 9/4/26
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6 Terms

1
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Non P

Supposons P

Recherche de contradiction

2
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P=>Q

  • supposons P

Preuve de Q

  • contraposee: supposons Q fausse

Preuve que P est fausse

  • Absurde: supposons que (P et non Q) est vraie

    recherche de contradiction



3
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P<=>Q

  • double implication

  • Équivalence


4
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P et Q

Preuve de P et preuve de Q

5
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P V Q

  • montrons P

  • Montrons Q

  • On suppose P vraie et on démontre Q

  • Absurde: on suppose P et Q fausses et on cherche la contradiction


6
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