fact: Definition IsTerminalMorphism (Ap : object (U / X)) : Type := @IsInitialMorphism (C^op) _ X (U^op) (op_object Ap).
imports: Category.Core Functor.Core Category.Dual Functor.Dual Category.Objects InitialTerminalCategory.Core InitialTerminalCategory.Functors Trunc Types.Sigma HoTT.Tactics Basics.Tactics