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Proof step 49 from proof push-corr (previous step)

n0 < # ar, n0 = (i→n(i0) + n) % # ar, i→n(i0) + i→n(i1) = n0 + # ar, 0 < i1, n < i→n(i1), 0 ≤ i0 + i1, inv(mk(ar[n0, a], n→i(# ar), i0, i1 + 1)), i1 < n→i(# ar), inv(mk(ar, n→i(# ar), i0, i1)), i0 < n→i(# ar), i1 ≤ n→i(# ar), 0 ≤ i0, 0 ≤ (i0 + i1) % n→i(# ar) ⊦ i1 = 0, # ar = 1, ar[n0] = a, # ar = 0

Heuristic simplifier applied rule simplifier

And obtained the following new goals

Proof step 48:
i→n(i0) + i→n(i1) = (i→n(i0) + n) % # ar + # ar, 0 ≤ (i0 + i1) % n→i(# ar), 0 ≤ i0, i1 ≤ n→i(# ar), i0 < n→i(# ar), inv(mk(ar, n→i(# ar), i0, i1)), i1 < n→i(# ar), inv(mk(ar[(i→n(i0) + n) % # ar, a], n→i(# ar), i0, i1 + 1)), 0 ≤ i0 + i1, n < i→n(i1), 0 < i1, (i→n(i0) + n) % # ar < # ar ⊦ ar[(i→n(i0) + n) % # ar] = a, # ar = 1, i1 = 0

Rule argument

[emptyarg]

Additional information

[[CONCRETESIMPRULES : ([CSIMPFORWARD : ⊦ m < n → n ≠ 0], [CSIMPSEQ : ⊦ m < n → n ≠ 0])]]