| ∀ j. ¬ j < 0 ∧ ¬ i ≤ j → r -- j ' ∈ st[r0 -- _length, val] ⊦ ∀ j. 0 ≤ j ∧ j < i → r -- j ' ∈ st |
j < i, 0 ≤ j, 0 < i, ∀ j. ¬ j < 0 ∧ ¬ i ≤ j → r -- j ' ∈ st[r0 -- _length, val] ⊦ r -- j ' ∈ st
[[CONCRETESIMPRULES : ([CSIMPFORWARD : ⊦ i ≤ j ∧ 0 ≤ i → 0 ≤ j], [CSIMPFORWARD : ⊦ i < j ∧ 0 ≤ i → 0 < j])]]