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Logique propositionnelle classique - MLO - Ensiie

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Déduction naturelle : élimination et introduction de ⇒, ∧<br />

(⇒ i )<br />

(⇒ e )<br />

∆, A ⊢ B<br />

∆ ⊢ A ⇒ B<br />

∆ ⊢ A ⇒ B<br />

∆ ⊢ B<br />

∆ ⊢ A<br />

(∧i)<br />

(∧e g )<br />

(∧e d )<br />

∆ ⊢ A ∆ ⊢ B<br />

∆ ⊢ A ∧ B<br />

∆ ⊢ A ∧ B<br />

∆ ⊢ A<br />

∆ ⊢ A ∧ B<br />

∆ ⊢ B<br />

Catherine Dubois, Julien Narboux (Strasbourg) () <strong>Logique</strong> <strong>propositionnelle</strong> <strong>classique</strong> 38 / 60

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