proposition: Lemma nat_seq_succ : forall o k, nat_seq o (S k) = o :: (nat_seq (S o) k).
proof: Proof. Proof using. auto. Qed.
imports: Coq.Classes.Morphisms TLC(LibTactics LibLogic LibReflect LibOperation LibProd LibOption LibNat LibInt LibWf LibMonoid LibRelation)