| ∀ rk, st. rk ∈ st[rkvs0] ↔ rk ∈ st ∨ rk ∈ rkvs0 ⊦ rk ∈ st[rkv + rkvs0] ↔ rk ∈ st ∨ rk ∈ rkv + rkvs0 |
⊦ st[rkvs + rkvs0] = (st[rkvs][rkvs0])
⊦ st[rkv '] = st[rkv .1, rkv .2]
∀ rk, st. rk ∈ st[rkvs0] ↔ rk ∈ st ∨ rk ∈ rkvs0 ⊦ rk ∈ (st[rkv .1, rkv .2][rkvs0]) ↔ rk ∈ st ∨ rk ∈ rkv ' ∨ rk ∈ rkvs0
[[CONCRETESIMPRULES : ([CSIMPSEQ : ⊦ rk ∈ rkvs + rkvs0 ↔ rk ∈ rkvs ∨ rk ∈ rkvs0], [CSIMPSEQ : ⊦ (rkvs + rkvs0) + rkvs1 = rkvs + rkvs0 + rkvs1], [CSIMPSEQ : ⊦ rkv + rkvs = rkv ' + rkvs])]]