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Declaration
image_elim
Mathlib.Algebra.Group.Image
Packages
2
Module
63
Theorems
750
Declarations
1016
Untrusted sidecar
Source text and display overlays are presentation metadata. The signed certificate and checker result are the trusted evidence.
Statement
forall (G : Sort u), forall (H : Sort v), forall (f : forall (x : G), H), forall (y : H), forall (img : @ImagePred.{u,v} G H f y), forall (P : Prop), forall (mk : forall (a : G), forall (h : @Eq.{v} H (f a) y), P), P
Proof term
fun G => fun H => fun f => fun y => fun img => fun P => fun mk => img P mk