fact: Definition abgrshombinop_inv_ismonoidfun {X Y : abgr} (f : monoidfun X Y) : ismonoidfun (λ x : X, grinv Y (pr1 f x)).
imports: UniMath.MoreFoundations.Orders UniMath.MoreFoundations.Tactics UniMath.MoreFoundations.Subtypes UniMath.Algebra.BinaryOperations UniMath.Algebra.Monoids