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Proof step 5 from proof exactarray-length (conclusion)

⊦ exactarray(r, ty, st) → ¬ val2int(st[r -- _length]) < 0

Heuristic simplifier applied rule simplifier

And obtained the following new goals

Proof step 1:
⊦ exactarray(r, ty, st) → r ≠ jvmref ∧ r ∈ st
Proof step 4:
exactarray(r, ty, st), val2int(st[r -- _length]) < 0, r ∈ st ⊦ r = jvmref

Rule argument

[emptyarg]

Additional information

[[CONCRETESIMPRULES : ([CSIMPFORWARD : ⊦ j < i ∧ i ≤ 0 → j < 0])]]