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Declaration
eq_congr_arg
Mathlib.Logic.EqReasoning
Packages
2
Module
63
Theorems
750
Declarations
1016
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Statement
forall (A : Sort u), forall (B : Sort v), forall (f : forall (x : A), B), forall (x : A), forall (y : A), forall (h : @Eq.{u} A x y), @Eq.{v} B (f x) (f y)Proof term
fun A => fun B => fun f => fun x => fun y => fun h => @Eq.rec.{u,0} A x (fun (b : A) => fun (hb : @Eq.{u} A x b) => @Eq.{v} B (f x) (f b)) (@Eq.refl.{v} B (f x)) y h