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Proof step 84 from proof same-subclasses-01 (
previous step
)
contains(str, ty + (tys + mkclasstype(class))), ¬ mkclasstype(class) ≤ ty .jtelemtype ⊦ ∃ tys1. # tys1 ≤ # tys ∧ contains(str, ty .jtelemtype + (tys1 + mkclasstype(class)))
Lemma
contains-array-elemtype-ex