9 lines
173 B
Text
9 lines
173 B
Text
open prod
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variables {A B C : Type} (f : A → B → C) (a : A) (b b' : B)
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example (p : b = b') : prod.cases_on (a, b) f = f a b' :=
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begin
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esimp,
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state,
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rewrite p
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end
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