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Proof step 6 from proof getarray-addarray-01 (previous step)

⊦ r = r0, getarray(r, 0, (addarray(r0, ty, vals, st)[r -- _length]) .intval, addarray(r0, ty, vals, st)) = getarray(r, 0, st[r -- _length] .intval, st)

Heuristic simplifier applied rule simplifier

And obtained the following new goals

Proof step 3:
⊦ r ≠ r0 → (addarray(r, ty, vals, st)[r0 -- sk]) = st[r0 -- sk]
Proof step 5:
⊦ r = r0, getarray(r, 0, st[r -- _length] .intval, addarray(r0, ty, vals, st)) = getarray(r, 0, st[r -- _length] .intval, st)

Rule argument

[emptyarg]

Additional information

[[CONCRETESIMPRULES : ()]]