proposition: Lemma inner_swap_is_z_isomorphism (x y z w : V) : is_z_isomorphism (inner_swap x y z w).
proof: Proof. use make_is_z_isomorphism. - apply inner_swap. - split ; apply inner_swap_inv. Defined.
imports: UniMath.Foundations.All UniMath.MoreFoundations.All UniMath.CategoryTheory.Core.Categories UniMath.CategoryTheory.Core.Functors UniMath.CategoryTheory.Core.Isos UniMath.CategoryTheory.Limits.BinProducts UniMath.CategoryTheory.PrecategoryBinProduct UniMath.CategoryTheory.Monoidal.WhiskeredBifunctors UniMath.CategoryTheory.Monoidal.Categories UniMath.CategoryTheory.Monoidal.Structure.Symmetric