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Proof step 9 from proof comp-copy (previous step)

i + j ≤ j0, 0 ≤ i, 0 ≤ j ⊦ ∀ j1. 0 ≤ j1 ∧ j1 < j → (arraycopy(r0, 0, r, 0, j0, st)[r0 -- (i + j1) ']) = (arraycopy(r0, 0, r, 0, j0, st)[r -- (i + j1) '])

Heuristic simplifier applied rule simplifier

And obtained the following new goals

Proof step 8:
j1 < j, i + j ≤ j0, 0 ≤ i, 0 ≤ j, 0 ≤ j1, 0 < j ⊦ (arraycopy(r0, 0, r, 0, j0, st)[r0 -- (i + j1) ']) = (arraycopy(r0, 0, r, 0, j0, st)[r -- (i + j1) '])

Rule argument

[emptyarg]

Additional information

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