| m0 < # vols[v, vols[v][m, ebae]][v0], v0 ∈ vols[v, vols[v][m, ebae]], v0 × m0 ∈ recs, v × m ∈ recs, v ∈ vols, ∀ v, m. ¬ v × m ∈ recs ∨ ¬ v ∈ vols ∨ ¬ m < # vols[v] ∨ vols[v][m] = unmapped ⊦ vols[v, vols[v][m, ebae]][v0][m0] = unmapped, v0 × m0 = v × m |
v0 = v, m0 < # vols[v, vols[v][m, ebae]][v0], v ∈ vols, v × m ∈ recs, v0 × m0 ∈ recs, v0 ∈ vols[v, vols[v][m, ebae]], ∀ v, m. ¬ v × m ∈ recs ∨ ¬ v ∈ vols ∨ ¬ m < # vols[v] ∨ vols[v][m] = unmapped ⊦ vols[v, vols[v][m, ebae]][v0][m0] = unmapped, v0 × m0 = v × m
m0 < # vols[v, vols[v][m, ebae]][v0], v ∈ vols, v × m ∈ recs, v0 × m0 ∈ recs, v0 ∈ vols[v, vols[v][m, ebae]], ∀ v, m. ¬ v × m ∈ recs ∨ ¬ v ∈ vols ∨ ¬ m < # vols[v] ∨ vols[v][m] = unmapped ⊦ vols[v, vols[v][m, ebae]][v0][m0] = unmapped, v0 = v, v0 × m0 = v × m
Used formulas: v0 = v