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Proof step 12 from proof ls-datasize-wear-level (previous step)

# buf = LEB_SIZE, LEB_SIZE = n0 + m, LEB_SIZE = n1 + m, subarray(buf, m, n0) = mkempbuf(n0), m < datasize(buf, LEB_SIZE), is-aligned(m, EB_PAGE_SIZE), m ≤ LEB_SIZE, m < LEB_SIZE → buf = subarray(buf, 0, m) + subarray(buf, m, n1) ⊦

Heuristic simplifier applied rule simplifier

And obtained the following new goals

Proof step 13:
# buf = LEB_SIZE, LEB_SIZE = n1 + m, subarray(buf, m, n1) = mkempbuf(n1), m < datasize(buf, LEB_SIZE), is-aligned(m, EB_PAGE_SIZE), m ≤ LEB_SIZE, m < LEB_SIZE → buf = subarray(buf, 0, m) + subarray(buf, m, n1) ⊦

Rule argument

Additional information

Used simplifier rules: eqs: ⊦ m = n + n0 ∧ m = n + n1 → n0 = n1; (forward) from specification nat-basic%c: ⊦ m + n = n + m; from specification nat-basic%a: ⊦ (m + n0) + n1 = m + n0 + n1; from specification nat-basic