fact: Definition poly_type_norm := (renComp_poly_type, compComp_poly_type, renRen_poly_type, compRen_poly_type).
imports: List Lia Undecidability.SystemF.SysF Undecidability.SystemF.Autosubst.syntax Undecidability.SystemF.Autosubst.unscoped Undecidability.SystemF.Util.Facts ssreflect ssrbool ssrfun