| ∀ adr, ri. adr ∈ referenced-adrs(ax0, ri) ↔ adr ∈ ax0 ∧ adr ∈ ri ⊦ adr ∈ referenced-adrs(ax0, ri) ↔ (adr = adr0 ∨ adr ∈ ax0) ∧ adr ∈ ri, adr ∈ (adr0 ∈ ri ⊃ adr0 ';[]), adr ∈ referenced-adrs(ax0, ri) |
adr ∈ ri, adr ∈ ax0, ∀ adr, ri. adr ∈ referenced-adrs(ax0, ri) ↔ adr ∈ ax0 ∧ adr ∈ ri ⊦ adr = adr0, adr ∈ (adr0 ∈ ri ⊃ adr0 ';[]), adr ∈ referenced-adrs(ax0, ri)
Used simplifier rules: ⊦ adr ∈ adr0 ' ↔ adr = adr0; (s)