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Declaration

ThirdIsoKernelEvidence

Mathlib.Algebra.Group.ThirdIsomorphism

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 succ u), forall (one : G), forall (mul : forall (a : G), forall (b : G), G), forall (inv : forall (a : G), G), forall (N : forall (x : G), Prop), forall (Hpred : forall (x : G), Prop), forall (group_args : @GroupLawArgs.{succ u} G one mul inv), forall (n_normal : @NormalSubgroupLawArgs.{succ u} G one mul inv N), forall (h_normal : @NormalSubgroupLawArgs.{succ u} G one mul inv Hpred), forall (n_le_h : forall (x : G), forall (hn : N x), Hpred x), Prop

Proof term

fun G => fun one => fun mul => fun inv => fun N => fun Hpred => fun group_args => fun n_normal => fun h_normal => fun n_le_h => forall (P : Prop), forall (mk : forall (kernel_sound : forall (q : @NormalQuot.{u} G one mul inv N group_args n_normal), forall (hk : @ThirdIsoKernelPred.{u} G one mul inv N Hpred group_args n_normal q), @Eq.{succ u} (@NormalQuot.{u} G one mul inv Hpred group_args h_normal) (@ThirdIsoPhi.{u} G one mul inv N Hpred group_args n_normal h_normal n_le_h q) (@NormalQuotOne.{u} G one mul inv Hpred group_args h_normal)), forall (kernel_intro : forall (a : G), forall (ha : Hpred a), @ThirdIsoKernelPred.{u} G one mul inv N Hpred group_args n_normal (@NormalQuotMk.{u} G one mul inv N group_args n_normal a)), P), P