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Proof step 6 from proof addobj-isarray (previous step)

⊦ r = r0, r ≠ jvmref ∧ r -- _type ∈ st ∧ is_typevalue(st[r -- _type]) ∧ is_arraytype(st[r -- _type] .type) ∧ okarray(r, st[r -- _type] .type .type, addobj(r0, class, fis, st)) ↔ r ≠ jvmref ∧ r -- _type ∈ st ∧ is_typevalue(st[r -- _type]) ∧ is_arraytype(st[r -- _type] .type) ∧ okarray(r, st[r -- _type] .type .type, st)

Heuristic simplifier applied rule simplifier

And obtained the following new goals

Proof step 5:
⊦ r ≠ r0 → (okarray(r, ty, addobj(r0, class, fis, st)) ↔ okarray(r, ty, st))

Rule argument

[emptyarg]

Additional information

[[CONCRETESIMPRULES : ()]]