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Proof step 39 from proof crash-neutral-write (previous step)

# avols[v0] = # avols0[v0], m < # avols0[v0], m2 < # avols[v], ebm-cons(avols), ebm-cons(avols0), is-aligned(m1, EB_PAGE_SIZE), is-aligned(n, EB_PAGE_SIZE), v0 ∈ avols0, v0 ∈ avols, v ∈ avols, m1 + n ≤ LEB_SIZE, n + n2 ≤ # buf, ∀ m. m < # avols0[v0] ∧ avols[v0][m] ≠ unmapped → (avols[v0][m] = erased → avols0[v0][m] = erased) ∧ (avols[v0][m].mapped? → avols0[v0][m] = avols[v0][m]) ⊦ avols[v0][m] = unmapped, n = 0, v0 = v, avols[v][m2].mapped?, (avols[v0][m] = erased → avols0[v0][m] = erased) ∧ (avols[v0][m].mapped? → avols0[v0][m] = avols[v0][m])

User applied rule all left

And closed the goal!

Rule argument

pos: left 13 terms: m abort: F discard: T computed: T

Additional information

Used terms: m