| # kx0 = # ax1, new(ax1, fs), new(ax1, fs[adr, fs[ri[key]]]), ri-closed(ri, fs, ro), ri-closed(ri[key, adr][kx0, ax1], fs[adr, fs[ri[key]]][ax1, fs[adr, fs[ri[key]]][ri[kx0]]], ro), ri-cons(ri, fs), key ∈ ri, adr ∈ ri[kx0], adr ∈ ri, kx0.toSet ⊆ dom ri ⊦ dups(ax1), dups(kx0), ri-closed(ri[key, adr][kx0, ax1], fs[adr, fs[ri[key]]][ax1, fs[ri[kx0]]], ro), adr ∈ ax1, key ∈ kx0, adr ∈ fs |
⊦ adr ∈ ri ↔ (∃ key. key ∈ ri ∧ ri[key] = adr)
Used simplifier rules: ⊦ key ∈ ri ∧ ri-cons(ri, fs) → ri[key] ∈ fs; (ss) Used terms: ri, adr