(** * Definition of a strict category *)Set Universe Polymorphism. Set Implicit Arguments. Generalizable All Variables. Set Asymmetric Patterns. Local Open Scope morphism_scope. (** Quoting the HoTT Book: *) (** Definition. A _strict category_ is a precategory whose type of objects is a set. *) Notation IsStrictCategory C := (IsHSet (object C)). Record StrictCategory := { precategory_strict :> PreCategory; isstrict_StrictCategory :> IsStrictCategory precategory_strict }. Existing Instance isstrict_StrictCategory.