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Declaration

kernel_conj_closed

Mathlib.Algebra.Group.Kernel

Packages

2

Module

63

Theorem

750

Declarations

1016

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Statement

forall (G : Sort u), forall (oneG : G), forall (mulG : forall (a : G), forall (b : G), G), forall (invG : forall (a : G), G), forall (H : Sort v), forall (oneH : H), forall (mulH : forall (a : H), forall (b : H), H), forall (invH : forall (a : H), H), forall (f : forall (x : G), H), forall (groupH_args : @GroupLawArgs.{v} H oneH mulH invH), forall (hom_args : @GroupHomLawArgs.{u,v} G oneG mulG invG H oneH mulH invH f), forall (g : G), forall (a : G), forall (ha : @KernelPred.{u,v} G H oneH f a), @KernelPred.{u,v} G H oneH f (mulG (mulG g a) (invG g))

Proof term

fun G => fun oneG => fun mulG => fun invG => fun H => fun oneH => fun mulH => fun invH => fun f => fun groupH_args => fun hom_args => fun g => fun a => fun ha => @eq_trans.{v} H (f (mulG (mulG g a) (invG g))) (mulH (f (mulG g a)) (f (invG g))) oneH (@hom_mul.{u,v} G oneG mulG invG H oneH mulH invH f hom_args (mulG g a) (invG g)) (@eq_trans.{v} H (mulH (f (mulG g a)) (f (invG g))) (mulH (mulH (f g) (f a)) (invH (f g))) oneH (@eq_congr2.{v,v,v} H H H mulH (f (mulG g a)) (mulH (f g) (f a)) (f (invG g)) (invH (f g)) (@hom_mul.{u,v} G oneG mulG invG H oneH mulH invH f hom_args g a) (@hom_inv.{u,v} G oneG mulG invG H oneH mulH invH f hom_args g)) (@eq_trans.{v} H (mulH (mulH (f g) (f a)) (invH (f g))) (mulH (mulH (f g) oneH) (invH (f g))) oneH (@eq_congr_arg.{v,v} H H (fun (z : H) => mulH (mulH (f g) z) (invH (f g))) (f a) oneH ha) (@eq_trans.{v} H (mulH (mulH (f g) oneH) (invH (f g))) (mulH (f g) (mulH oneH (invH (f g)))) oneH (@group_mul_assoc.{v} H oneH mulH invH groupH_args (f g) oneH (invH (f g))) (@eq_trans.{v} H (mulH (f g) (mulH oneH (invH (f g)))) (mulH (f g) (invH (f g))) oneH (@eq_congr_arg.{v,v} H H (fun (z : H) => mulH (f g) z) (mulH oneH (invH (f g))) (invH (f g)) (@group_one_mul.{v} H oneH mulH invH groupH_args (invH (f g)))) (@group_mul_inv.{v} H oneH mulH invH groupH_args (f g))))))

Constants