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Proof step 10 from proof get-rec-01 (previous step)

¬ 1 < i0, 0 ≤ i0, ∀ i1, r, i, st. i→n(i1) < i→n(i0) → (0 ≤ i1 → getarray(r, i, i1 + 1, st) = st[r -- i '] ' + getarray(r, i + 1, i1, st)) ⊦ getarray(r, i, i0 + 1, st) = st[r -- i '] ' + getarray(r, i + 1, i0, st)

Heuristic simplifier applied rule simplifier

And obtained the following new goals

Proof step 9:
0 ≤ i0, i0 ≤ 1, ∀ i1, r, i, st. i→n(i1) < i→n(i0) → (0 ≤ i1 → getarray(r, i, i1 + 1, st) = st[r -- i '] ' + getarray(r, i + 1, i1, st)) ⊦ getarray(r, i, i0 + 1, st) = st[r -- i '] ' + getarray(r, i + 1, i0, st)

Rule argument

[emptyarg]

Additional information

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