Commit 2020-12-21 14:00 c5c02ec8
View on Github →feat(category_theory/yoneda): add iso_comp_punit (#5448)
A presheaf P : C^{op} -> Type v is isomorphic to the composition of P with the coyoneda functor Type v -> Type v associated to punit
.
[This is useful for developing the theory of sheaves taking values in a general category]