fact: Definition equiv_path_ind_lrucancel {X} (a b : X) (p : a = b) (P : forall (q : a = b), 1 @ p = q @ 1 -> Type) (r : P p (lrucancel 1)) : forall (q : a = b) (s : 1 @ p = q @ 1), P q s.
imports: HoTT(Basics Types)