proposition: Theorem weqweq {X Y : UU} (w: X ≃ Y) : (X ≃ X) ≃ (Y ≃ Y).
proof: Proof. intros. intermediate_weq (X ≃ Y). - apply weqfweq. assumption. - apply invweq. apply weqbweq. assumption. Defined.
imports: UniMath.Foundations.PartC