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Proof step 18 from proof same-subclasses (previous step)

∀ class0. contains(str0, mkclasstype(class), mkclasstype(class0)) → tdname+∃(str, class0), same-subclasses-contains(class, str, str0), contains(str0, mkclasstype(class), ty) ⊦ type∃(str, ty)

User applied rule cut formula

And obtained the following new goals

Proof step 5:
is_classtype(ty), ∀ class0. contains(str0, mkclasstype(class), mkclasstype(class0)) → tdname+∃(str, class0), same-subclasses-contains(class, str, str0), contains(str0, mkclasstype(class), ty) ⊦ type∃(str, ty)
Proof step 17:
∀ class0. contains(str0, mkclasstype(class), mkclasstype(class0)) → tdname+∃(str, class0), same-subclasses-contains(class, str, str0), contains(str0, mkclasstype(class), ty) ⊦ is_classtype(ty), type∃(str, ty)

Rule argument

[fma-arg: is_classtype(ty)]

Additional information

[[CONCRETESIMPRULES : ()], [EXTRAFMAS : (is_classtype(ty))]]