definition category.id [reducible] : Π {ob : Type} [C : precategory ob] {a : ob}, hom a a
λ (ob : Type) (C : precategory ob) (a : ob), ID a
definition function.id [reducible] : Π {A : Type}, A → A
λ (A : Type) (a : A), a
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definition category.id [reducible] : Π {ob : Type} [C : precategory ob] {a : ob}, hom a a
λ (ob : Type) (C : precategory ob) (a : ob), ID a
definition function.id [reducible] : Π {A : Type}, A → A
λ (A : Type) (a : A), a