fact: Definition grel_list (R:grel A) : grel (seq A) := fix aux l : seq A -> Prop := match l with | [::] => fun _ => False | x :: xs => Union (gpred_list (R x)) (aux xs) end.
imports: Coq(RelationClasses Setoid Morphisms SetoidList Mergesort Permutation) mathcomp(ssreflect ssrfun ssrbool eqtype ssrnat seq fintype) mathcomp(bigop path) RegexpBrzozowski(glue)