fact: Definition build_list_der (E:bregexp) : seq (bregexp*bword) := strip ( build_list_fun E E).
imports: Coq(RelationClasses) mathcomp(ssreflect ssrfun ssrbool eqtype ssrnat seq fintype) mathcomp(bigop path) RegLang(languages) RegexpBrzozowski(glue gfinset regexp finite_der)