| # ax1 = # ndx, new(ax1, fs), adr ∈ log, ∀ adr. adr ∈ log → adr ∈ fs ∧ node-cons(fs[adr].key, fs[adr]) ⊦ (adr ∈ fs ∨ adr ∈ ax1) ∧ node-cons(fs[ax1, ndx][adr].key, fs[ax1, ndx][adr]) |
# ax1 = # ndx, new(ax1, fs), adr ∈ log, ∀ adr. adr ∈ log → adr ∈ fs ∧ node-cons(fs[adr].key, fs[adr]) ⊦ adr ∈ fs, adr ∈ ax1
# ax1 = # ndx, new(ax1, fs), adr ∈ log, ∀ adr. adr ∈ log → adr ∈ fs ∧ node-cons(fs[adr].key, fs[adr]) ⊦ node-cons(fs[ax1, ndx][adr].key, fs[ax1, ndx][adr])