fact: Definition paths_map@{i} (A A' : Type@{i}) (AR : Param2b0.Rel A A') (x : A) (x' : A') (xR : AR x x') (y : A) (y' : A') (yR : AR y y') : x = y -> x' = y' := fun e => (R_in_map AR x x' xR)^ @ ap (map AR) e @ (R_in_map AR y y' yR).
imports: Coq(ssreflect) HoTT(HoTT) HoTT_additions Hierarchy