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Proof step 10 from proof is_array-addarray (conclusion)

⊦ is_array(str, r, addarray(r, ty, i, st)) ↔ ¬ ¬ (type∃(str, ty) ∧ 0 ≤ i ∧ r ≠ jvmref ∧ ty .jtelemtype ≠ void_type ∧ ty .jtelemtype ≠ abstract_type)

Heuristic simplifier applied rule simplifier

And obtained the following new goals

Proof step 9:
⊦ is_array(str, r, addarray(r, ty, i, st)) ↔ type∃(str, ty) ∧ ¬ i < 0 ∧ r ≠ jvmref ∧ ty .jtelemtype ≠ void_type ∧ ty .jtelemtype ≠ abstract_type

Rule argument

[emptyarg]

Additional information

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