proposition: Lemma pure_typable_tidyI {Gamma M} : pure_typable Gamma M -> pure_typable (map tidy Gamma) M.
proof: Proof. by move=> [?] /pure_typing_tidyI /pure_typableI. Qed.
imports: List Lia Relation_Definitions Relation_Operators Operators_Properties Undecidability.SystemF.SysF Undecidability.SystemF.Autosubst.syntax Undecidability.SystemF.Autosubst.unscoped Undecidability.SystemF.Util(Facts poly_type_facts pure_term_facts term_facts typing_facts iipc2_facts) ssreflect ssrbool ssrfun