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Go to solution Solved by Movgde,

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Hey je comprends pas la négation de cette phrase

 

3. Pour tout entier x il existe un entier y tel que, pour tout entier z, la relation z < y implique la relation z < x + 1

correction: 3. Il existe un entier x tel que, pour tout entier y, il existe un entier z tel que z < y et z ≥ x + 1.

 

ce qui me perturbe c'est pourquoi on écris pas z>y... merci d'avance 

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