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Proof step 18 from proof subset-len-01 (previous step)

st[r -- _type] = typeval(ty0), ty0 = mkarraytype(ty), st[r -- _length] = intval(i), 0 ≤ i, r ∈ st, is_typevalue(st[r -- _type]), r -- _type ∈ st, exactarray(r, ty, st0), r ∈ st0, st ⊆ st0, is_arrayref(r, i, st), r -- _length ∈ st ⊦ r = jvmref, st0[r -- _length] .intval = i

Heuristic simplifier applied rule simplifier

And obtained the following new goals

Proof step 17:
st[r -- _length] = intval(i), st[r -- _type] = typeval(mkarraytype(ty)), r -- _length ∈ st, is_arrayref(r, i, st), st ⊆ st0, r ∈ st0, exactarray(r, ty, st0), r -- _type ∈ st, r ∈ st, 0 ≤ i ⊦ st0[r -- _length] .intval = i, r = jvmref

Rule argument

[emptyarg]

Additional information

[[CONCRETESIMPRULES : ([CSIMPSEQ : ⊦ is_typevalue(typeval(ty))])]]