Created
February 23, 2012 09:45
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∀Z.(A -> Z) iff (A -> ∀Z.Z) の証明
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| Parameter A : Prop. | |
| Goal (forall X : Prop, (A -> X)) -> (A -> (forall X : Prop, X)). | |
| intros. | |
| apply H. | |
| assumption. | |
| Qed. | |
| Goal (A -> (forall X : Prop, X)) -> (forall X : Prop, (A -> X)). | |
| intros. | |
| exact (H H0 X). | |
| Qed. |
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