fact: Definition eq_sig2_rect_exist2 {A P Q} {u1 u2 u3 v1 v2 v3} (R : _ -> Type) (f : forall p q r, R (@eq_exist2_curried A P Q u1 v1 u2 v2 u3 v3 p q r)) : forall p, R p := eq_sig2_rect R f.
imports: Notations Ltac Datatypes Logic