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Proof step 20 from proof subset-len-01 (previous step)

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

Heuristic simplifier applied rule simplifier

And obtained the following new goals

Proof step 19:
st[r -- _type] .type = 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

Rule argument

[emptyarg]

Additional information

[[CONCRETESIMPRULES : ([CSIMPSEQ : ⊦ is_integervalue(intval(i))], [CSIMPFORWARD : ⊦ i ≤ j ∧ 0 ≤ i → 0 ≤ j])]]