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Proof step 18 from proof okbytearray-validref (previous step)

st[r -- _type] = typeval(ty), st[r -- _length] = intval(i), ty = mkarraytype(byte_type), r -- _length ∈ st, is_arrayref(r, i, st), junkref(str, r, st), r ∈ st, 0 ≤ i, r -- _type ∈ st, is_typevalue(st[r -- _type]), ∀ j. ¬ j < 0 ∧ ¬ i ≤ j → is_bytevalue(st[r -- j ']) ⊦ r = jvmref, is_array(str, r, st)

Heuristic simplifier applied rule simplifier

And obtained the following new goals

Proof step 17:
st[r -- _length] = intval(i), st[r -- _type] = typeval(mkarraytype(byte_type)), r -- _type ∈ st, 0 ≤ i, r ∈ st, junkref(str, r, st), is_arrayref(r, i, st), r -- _length ∈ st, ∀ j. ¬ j < 0 ∧ ¬ i ≤ j → is_bytevalue(st[r -- j ']) ⊦ r = jvmref, is_array(r, st)

Rule argument

[emptyarg]

Additional information

[[CONCRETESIMPRULES : ([CSIMPSEQ : ⊦ is_typevalue(typeval(ty))], [CSIMPSEQ : ⊦ st[r -- _type] = typeval (mkarraytype(byte_type)) ∧ r ≠ jvmref → ( is_array(str, r, st) ↔ is_array(r, st))])]]