Created
January 13, 2023 18:26
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| variable {α : Sort u} {β : α → Sort v} (f g : (x : α) → β x) | |
| def eqv := ∀ x, f x = g x | |
| theorem eq_of_eqv (h : eqv f g) : f = g := | |
| congrArg (λ x => ·.lift (· x) (λ _ _ => (· x))) (Quot.sound h) |
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