fact: Definition fmapE := (fndSome, getfE, setfK, fnd_set, getf_set, setfNK, fnd_reducef, get_reducef, fnd_filterf, get_filterf, fnd_restrict, getf_restrict, fnd_rem, fnd_rem1, restrictfT, restrictf0, restrictf_id, remf_id, remf1_id, fnd_cat).
imports: HB(structures) mathcomp(ssreflect ssrbool ssrnat eqtype ssrfun seq) mathcomp(choice path finset finfun fintype bigop)