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Proof step 12 from proof get-del-01 (previous step)

¬ j ≤ 0, ∀ j0, r, r0, i, st. i→n(j0) < i→n(j) → (true → r = r0 ∨ getarray(r, i, j0, st -- r0) = getarray(r, i, j0, st)) ⊦ getarray(r, i, j, st -- r0) = getarray(r, i, j, st), r = r0

Heuristic simplifier applied rule simplifier

And obtained the following new goals

Proof step 11:
0 < j, ∀ j0, r, r0, i, st. i→n(j0) < i→n(j) → (true → r = r0 ∨ getarray(r, i, j0, st -- r0) = getarray(r, i, j0, st)) ⊦ getarray(r, i, j, st -- r0) = getarray(r, i, j, st), r = r0

Rule argument

[emptyarg]

Additional information

[[CONCRETESIMPRULES : ([CSIMPFORWARD : ⊦ i < j ∧ 0 ≤ i → 0 < j], [CSIMPSEQ : ⊦ ¬ i ≤ j ↔ j < i])]]