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Proof step 3 from proof okarray-mod (conclusion)

⊦ okarray(r, boolean_type, st) ∧ is_boolvalue(val) → (¬ okarray(r, boolean_type, st[r -- i ', val]) ↔ false)

Heuristic simplifier applied rule simplifier

And obtained the following new goals

Proof step 2:
okarray(r, boolean_type, st), is_boolvalue(val), r ∈ st ⊦ r = jvmref, okarray(r, boolean_type, st[r -- i ', val])

Rule argument

[emptyarg]

Additional information

[[CONCRETESIMPRULES : ([CSIMPNAMEDFORWARD : okfuns, , okarray-05, ⊦ okarray(r, ty, st) → r ≠ jvmref ∧ r ∈ st])]]