2013-09-07 00:12:35 +00:00
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Set: pp::colors
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Set: pp::unicode
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Assumed: C
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Assumed: D
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Assumed: R
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Proved: R2
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2014-01-05 20:05:08 +00:00
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theorem R2 (A A' B B' : Type) (H : (A → B) = (A' → B')) (a : A) : B = B' := R A A' (λ x : A, B) (λ x : A', B') H a
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2013-09-07 00:12:35 +00:00
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Proved: R3
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Proved: R4
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Proved: R5
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2014-01-05 20:05:08 +00:00
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theorem R5 (A1 A2 B1 B2 : Type) (H : (A1 → B1) = (A2 → B2)) (a : A1) : B1 = B2 :=
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2013-10-24 22:42:17 +00:00
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R A1 A2 (λ x : A1, B1) (λ x : A2, B2) H a
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