| ⊦ validref(str0, r, mkclasstype(class), st) ∧ same-subclasses-contains(class, str, str0) ∧ tdname+∃(str0, class) → validref(str, r, mkclasstype(class), st) |
tdname+∃(str0, class), same-subclasses-contains(class, str, str0), validref(str0, r, mkclasstype(class), st) ⊦ validref(str, r, mkclasstype(class), st)
[[CONCRETESIMPRULES : ()]]