| ri[fs[referenced-adrs(ax0, ri)].keys] = referenced-adrs(ax0, ri), ri-cons(ri, fs), adr ∈ ri ⊦ ri[fs[adr].key] = adr |
⊦ adr ∈ ri ↔ (∃ key. key ∈ ri ∧ ri[key] = adr)
Used simplifier rules: ⊦ ri-cons(ri, fs) ∧ key ∈ ri → fs[ri[key]].key = key; (s) Used terms: ri, adr