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Proof step 18 from proof fix-bits2bytes (previous step)

# bits = m * 8 + n0, n ≤ m + 1, # bits ≤ 8 * (n - 1), n0 < 8 ⊦ bits = [], n = 0, fix(n, bits2bytes(bits)) = bits2bytes(fillsgn(n * 8, bits)), n0 = 0

User applied rule insert equation

And obtained the following new goals

Proof step 19:
# bits = m * 8 + n0, n ≤ m + 1, m * 8 + n0 ≤ 8 * (n - 1), n0 < 8 ⊦ bits = [], n = 0, fix(n, bits2bytes(bits)) = bits2bytes(fillsgn(n * 8, bits)), n0 = 0

Rule argument

pos: left 1 flags:

Additional information