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Proof step 28 from proof content-trunc (previous step)

(n0 * VFS_PAGE_SIZE + n1) + n = m0 * VFS_PAGE_SIZE, n2 + (n0 * VFS_PAGE_SIZE + n1) + n < VFS_PAGE_SIZE + VFS_PAGE_SIZE * n0, n1 < VFS_PAGE_SIZE, n2 < VFS_PAGE_SIZE, m0 ∈ content ⊦ n1 = 0, zero = content[m0][n2]

User applied rule simplifier

And obtained the following new goals

Proof step 29:
(n0 * VFS_PAGE_SIZE + n1) + n = m0 * VFS_PAGE_SIZE, n2 < VFS_PAGE_SIZE, n1 < VFS_PAGE_SIZE, n2 + n1 + n < VFS_PAGE_SIZE, m0 ∈ content ⊦ n1 = 0, zero = content[m0][n2]

Rule argument

Additional information

Used simplifier rules: c: ⊦ m + n = n + m; from specification nat-basic%a: ⊦ (m + n0) + n1 = m + n0 + n1; from specification nat-basic% ⊦ m + n < m + n0 ↔ n < n0; (s)%mult-c: ⊦ m * n = n * m; from specification nat-mult