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Proof step 5 from proof in-keyrange-in-ri-data (previous step)

n < # zbrar, n < nused, adr ∈ (n = 0 ⊃ (nused = 1 ⊃ ri;ri |≤ zbrar[0].key);(n + 1 = nused ⊃ ri |> zbrar[n - 1].key;(ri |> zbrar[n - 1].key) |≤ zbrar[n].key)), nused ≤ # zbrar ⊦ adr ∈ ri

Heuristic simplifier applied rule simplifier

And obtained the following new goals

Proof step 6:
n < nused, n < # zbrar, adr ∈ (n = 0 ⊃ (nused = 1 ⊃ ri;ri |≤ zbrar[0].key);(n + 1 = nused ⊃ ri |> zbrar[n - 1].key;(ri |> zbrar[n - 1].key) |≤ zbrar[n].key)), nused ≤ # zbrar ⊦ adr ∈ ri

Proof step 5 from proof in-keyrange-in-ri-data (previous step)

Heuristic simplifier applied rule simplifier

And obtained the following new goals

Rule argument

Additional information