| # avols0[v0] = # avols1[v0], m0 < # avols1[v0], v0 ∈ avols1, v0 ∈ avols0, v ∈ avols0, ∀ m. m < # avols1[v0] ∧ avols0[v0][m] ≠ unmapped → (avols0[v0][m] = erased → avols1[v0][m] = erased) ∧ (avols0[v0][m].mapped? → avols1[v0][m] = avols0[v0][m]) ⊦ avols0[v0][m0] = unmapped, v0 = v, (avols0[v0][m0] = erased → avols1[v0][m0] = erased) ∧ (avols0[v0][m0].mapped? → avols1[v0][m0] = avols0[v0][m0]) |
Used terms: m0