fact: Definition option_R_in_mapK : forall (A A' : Type) (AR : Param40.Rel A A') (oa : option A) (oa' : option A') (oaR : optionR A A' AR oa oa'), option_map_in_R A A' AR oa oa' (option_R_in_map A A' AR oa oa' oaR) = oaR.
imports: Coq(ssreflect) HoTT(HoTT) HoTT_additions Hierarchy