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Proof step 10 from proof contains-subex (previous step)

ty0 = mkarraytype(ty1), ty1 .jtelemtype = mkclasstype(class), is_arraytype(ty0), contains(str0, ty, ty0), ∀ class1. contains(str0, ty, mkclasstype(class1)) → tdname+∃(str, class1) ⊦ tdname+∃(str, class)

Heuristic simplifier applied rule simplifier

And obtained the following new goals

Proof step 9:
ty1 .jtelemtype = mkclasstype(class), contains(str0, ty, mkarraytype(ty1)), ∀ class1. contains(str0, ty, mkclasstype(class1)) → tdname+∃(str, class1) ⊦ tdname+∃(str, class)

Rule argument

[emptyarg]

Additional information

[[CONCRETESIMPRULES : ([CSIMPSEQ : ⊦ is_arraytype(mkarraytype(ty))])]]