fact: Definition weqonsec {X Y} (P:X->Type) (Q:Y->Type) (f:X ≃ Y) (g:∏ x, weq (P x) (Q (f x))) : (∏ x:X, P x) ≃ (∏ y:Y, Q y).
imports: UniMath.Foundations.PartD UniMath.Foundations.UnivalenceAxiom UniMath.MoreFoundations.PartA