| ∀ val. flatten(val ++ intval(i0)) = flatten(val) ++ intval(i0) ⊦ flatten(val ++ intval(i0 +1)) = flatten(val) ++ intval(i0 +1) |
∀ val. flatten(val ++ intval(i0)) = flatten(val) ++ intval(i0) ⊦ flatten(val ++ intval(i0 + 1)) = flatten(val) ++ intval(i0 + 1)
[[CONCRETESIMPRULES : ([CSIMPSEQ : ⊦ i +1 = i + 1])]]