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Proof step 12 from proof getintarray-subset (previous step)

st ⊆ st0, r -- _length ∈ st, r ∈ st, ∀ j. ¬ j < 0 ∧ ¬ st[r -- _length] .intval ≤ j → r -- j ' ∈ st ⊦ getintarray(r, 0, st[r -- _length] .intval, st) = getintarray(r, st0)

User applied rule insert rewrite lemma

And obtained the following new goals

Proof step 3:
⊦ getintarray(r, st) = getintarray(r, 0, st[r -- _length] .intval, st)
Proof step 11:
st ⊆ st0, r -- _length ∈ st, r ∈ st, ∀ j. ¬ j < 0 ∧ ¬ st[r -- _length] .intval ≤ j → r -- j ' ∈ st ⊦ getintarray(r, 0, st[r -- _length] .intval, st) = getintarray(r, 0, st0[r -- _length] .intval, st0)

Rule argument

[crewrite-arg: getintarray-def, F, [st, r] → [st0, r]]

Additional information

[[CONCRETESIMPRULES : ()], [EXTRATERMS : (st0, r)]]