proposition: Fact ltgtP x y : compare x y (min y x) (min x y) (max y x) (max x y) (y == x) (x == y) (x >= y) (x <= y) (x > y) (x < y).
proof: Proof. exact: comparable_ltgtP. Qed.
imports: HB(structures) mathcomp(ssreflect ssrfun ssrbool eqtype ssrnat choice seq) mathcomp(path fintype tuple bigop finset div prime finfun) mathcomp(finset)