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Proof step 22 from proof crash-neutral-write (previous step)

avols[v][m2] = mapped(buf0, m), m2 < # avols[v], ebm-cons(avols0), ebm-cons(avols), is-aligned(n, EB_PAGE_SIZE), is-aligned(m1, EB_PAGE_SIZE), v ∈ avols, n + n2 ≤ # buf, m1 + n ≤ LEB_SIZE, m ≤ m1, avols ⊆ avols0 ⊦ ⟨skip⟩ true, ∃ n1. n1 < n ∧ is-aligned(n1, EB_PAGE_SIZE) ∧ ⟨if n1 ≠ 0 then avols[v][m2] := mapped(subarray(avols[v][m2].data, 0, m1) + subarray(buf, n2, n1) + mkempbuf(LEB_SIZE - m1 - n1), m1 + n1)⟩ (avols ⊆ avols0)

User applied rule skip right

And closed the goal!

Rule argument

pos: right 1

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