normal_rel_of_eq

forall (G : Sort u), forall (one : G), forall (mul : forall (a : G), forall (b : G), G), forall (inv : forall (a : G), G), forall (group_args : @GroupLawArgs.{u} G one mul inv), forall (N : forall (x : G), Prop), forall (normal_args : @NormalSubgroupLawArgs.{u} G one mul inv N), forall (a : G), forall (b : G), forall (h : @Eq.{u} G a b), @NormalRel.{u} G one mul inv N a b

fun G => fun one => fun mul => fun inv => fun group_args => fun N => fun normal_args => fun a => fun b => fun h => @eq_subst.{u} G (fun (z : G) => @NormalRel.{u} G one mul inv N a z) a b h (@normal_rel_refl.{u} G one mul inv group_args N normal_args a)