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Proof step 21 from proof ls-datasize-wear-level (previous step)

LEB_SIZE = n0 + m, subarray(buf, m, n0) = mkempbuf(n0), m < datasize(subarray(buf, 0, m) + subarray(buf, m, n0), LEB_SIZE), is-aligned(m, EB_PAGE_SIZE), m ≤ LEB_SIZE ⊦ ∃ buf0. subarray(buf, 0, m) + subarray(buf, m, n0) = mkempbuf(LEB_SIZE) + buf0, ∃ buf0. # buf0 = 0

User applied rule exists right

And closed the goal!

Rule argument

pos: right 2 terms: mkbuf(0) abort: F discard: T computed: F

Additional information

Used simplifier rules: ⊦ # mkbuf(n) = n; (s) Used terms: mkbuf(0)