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Proof step 9 from proof add-put-switch (previous step)

i = i1 + 1, is_fskey(sk), 0 < i, ∀ val0, st, val, r0, sk, i0. i→n(i0) < i→n(i) → (is_fskey(sk) → addarray(r0, val, i0, st[r0 -- sk, val0]) = (addarray(r0, val, i0, st)[r0 -- sk, val0])) ⊦ (addarray(r0, val, i1, st[r0 -- sk, val0])[r0 -- i1 ', val]) = (addarray(r0, val, i, st)[r0 -- sk, val0])

Heuristic simplifier applied rule simplifier

And obtained the following new goals

Proof step 4:
⊦ 0 ≤ i → addarray(r, val, i + 1, st) = (addarray(r, val, i, st)[r -- i ', val])
Proof step 8:
is_fskey(sk), 0 ≤ i1, ∀ val0, st, val, r0, sk, i0. i→n(i0) < i→n(i1 + 1) → (is_fskey(sk) → addarray(r0, val, i0, st[r0 -- sk, val0]) = (addarray(r0, val, i0, st)[r0 -- sk, val0])) ⊦ (addarray(r0, val, i1, st[r0 -- sk, val0])[r0 -- i1 ', val]) = (addarray(r0, val, i1, st)[r0 -- i1 ', val][r0 -- sk, val0])

Rule argument

[emptyarg]

Additional information

[[CONCRETESIMPRULES : ([CSIMPFORWARD : ⊦ i ≤ j ∧ 0 ≤ i → 0 ≤ j], [CSIMPSEQ : ⊦ i + j = j + i], [CSIMPSEQ : ⊦ i + j + i0 = (i + j) + i0], [CSIMPSEQ : ⊦ (~1) < i ↔ 0 ≤ i], [CSIMPSEQ : ⊦ ((* j)) < i0 + ((* j0)) ↔ j - j0 < i0])]]