proposition: Lemma subst_term_ren_term {σ σ' ξ ξ' P} : subst_term σ σ' (ren_term ξ ξ' P) = subst_term (ξ >> σ) (ξ' >> σ') P.
proof: Proof. by apply: compRenSubst_term. Qed.
imports: List Lia Undecidability.SystemF.SysF Undecidability.SystemF.Autosubst.syntax Undecidability.SystemF.Autosubst.unscoped Undecidability.SystemF.Util(Facts poly_type_facts pure_term_facts) ssreflect ssrbool ssrfun