third_iso_rel_lift

Mathlib.Algebra.Group.ThirdIsomorphism

Packages

Module

Theorem

750

Declarations

1016

信頼境界外の sidecar

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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 (n_le_h : forall (x : G), forall (hn : N x), Hpred x), forall (a : G), forall (b : G), forall (h : @NormalRel.{succ u} G one mul inv N a b), @NormalRel.{succ u} G one mul inv Hpred a b

Proof term

fun G => fun one => fun mul => fun inv => fun N => fun Hpred => fun n_le_h => fun a => fun b => fun h => n_le_h (mul (inv a) b) h

Constants

Mathlib.Algebra.Group.Subgroup.NormalRel

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