2014-01-06 03:10:21 +00:00
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import macros
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2013-12-25 20:27:56 +00:00
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2014-01-08 08:38:39 +00:00
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theorem T (A : Type) (p : A -> Bool) (f : A -> A -> A) : forall x y z, p (f x x) → x = y → x = z → p (f y z) :=
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λ x y z, λ (H1 : p (f x x)) (H2 : x = y) (H3 : x = z),
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2014-01-06 03:10:21 +00:00
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subst (subst H1 H2) H3
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2013-12-25 20:27:56 +00:00
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2014-01-05 20:05:08 +00:00
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print environment 1.
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