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Proof step 104 from proof fix-bits2bytes-01 (previous step)

# bits = m * 8 + n0, n - 1 - m = 0, 1 + m < n, m < n, n0 < 8 ⊦ bits = [], n * 8 = # bits, n0 = 0, mklist(i2b(0), n - 1 + m) + bits2bytes(bits) = bits2bytes(mklist(false, 8 - n0) + bits), bits.first

User applied rule insert rewrite lemma

And obtained the following new goals

Proof step 105:
n < m ⊦ m - 1 - n = m - n + 1

Rule argument

seq: n < m ⊦ m - 1 - n = m - n + 1 subst: [n, m] → [m, n] rotate: F spec: nat inst: name: prop

Additional information

Used simplifier rules: ⊦ m + n = n + m;% ⊦ n < m → m - n ≠ 0; Used terms: m, n