« Logique (mathématiques)/Exercices/Forme Normale Disjonctive » : différence entre les versions

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→‎Partie B : maintenance
Ligne 113 :
{{Solution
| contenu =
{|{{!}} class="wikitable"
{{!}} <math>x</math>
{{!}} <math>y</math>
{{!}} <math>z</math>
{{!}} <math>x \iff \neg z</math>
{{!}} <math>\neg x \iff y</math>
{{!}} <math>\psi</math>
|{{!}}-----
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|}
 
La FND de <math>\psi</math> est <math>(\neg x \and \neg y \and z) \or (\neg x \and y \and \neg z) \or (\neg x \and y \and z) \or (x \and \neg y \and \neg z) \or (x \and \neg y \and z) \or (x \and y \and \neg z)</math>