fact: Definition issect_trijoin_rec_inv {A B C P : Type} (f : TriJoin A B C -> P) : trijoin_rec (trijoin_rec_inv f) $== f := cate_issect (trijoin_rec_inv_natequiv A B C P) f.
imports: Basics Types.Paths WildCat Join.Core HoTT.Tactics