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Proof step 4 from proof junkref-is_array (conclusion)

⊦ ¬ is_array(str, r, st) ∧ st[r -- _type] .type = mkarraytype(ty) → (junkref(str, r, st) ↔ r ≠ jvmref)

Heuristic simplifier applied rule simplifier

And obtained the following new goals

Proof step 1:
⊦ ¬ junkref(str, jvmref, st)
Proof step 3:
st[r -- _type] .type = mkarraytype(ty) ⊦ r = jvmref, is_array(str, r, st), junkref(str, r, st)

Rule argument

[emptyarg]

Additional information

[[CONCRETESIMPRULES : ()]]