fact: Definition R_in_comap {A B} (R : Param02b.Rel A B) : forall (b : B) (a : A), R a b -> comap R b = a := Map2b.R_in_map _ (Param02b.contravariant A B R).
imports: Coq(ssreflect) HoTT(HoTT) HoTT_additions Database elpi(elpi)