返回 NPA
声明
third_iso_rel_lift
Mathlib.Algebra.Group.ThirdIsomorphism
包
2
模块
63
定理
750
声明
1016
非可信 sidecar
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陈述
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证明项
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