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Proof step 11 from proof validref-addarray-same (conclusion)

⊦ validref(str, r, mkarraytype(ty), addarray(r, ty, i, st)) ↔ r = jvmref ∨ 0 ≤ i ∧ type∃(str, ty) ∧ ty .jtelemtype ≠ abstract_type ∧ ty .jtelemtype ≠ void_type

Heuristic simplifier applied rule simplifier

And obtained the following new goals

Proof step 10:
⊦ validref(str, r, mkarraytype(ty), addarray(r, ty, i, st)) ↔ r = jvmref ∨ ¬ i < 0 ∧ type∃(str, ty) ∧ ty .jtelemtype ≠ abstract_type ∧ ty .jtelemtype ≠ void_type

Rule argument

[emptyarg]

Additional information

[[CONCRETESIMPRULES : ([CSIMPSEQ : ⊦ ¬ i ≤ j ↔ j < i])]]