fact: Definition finmempred_of (T : eqType) (P : pred T) (mP : finmempred T) & phantom (mem_pred T) mP : finmempred T := mP.
imports: HB(structures) mathcomp(ssreflect ssrbool ssrnat eqtype ssrfun seq) mathcomp(choice path finset finfun fintype bigop)