proposition: Lemma Cons_subst sigma s t: sigma • (s ::: t) = (sigma • s) ::: (sigma • t).
proof: Proof. reflexivity. Qed.
imports: List Lia Program.Program Undecidability.HOU(std.std axioms) RelationClasses Morphisms Init.Wf Init.Nat Setoid Undecidability.HOU(calculus.calculus second_order.goldfarb.encoding) FinFun Coq.Arith.Wf_nat