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Proof step 41 from proof int2bytes-butlast (previous step)

~256 ≤ i ∨ i % 256 = 0, ~256 ≤ i ∨ i % 256 ≠ 0, i ≤ ~256 ∨ ~128 ≤ i, i < 128 ∨ 256 ≤ i, i < ~128 ∨ 128 ≤ i ⊦ int2bytes(i / 256) = int2bytes(i >> 8)

User applied rule cut formula

And obtained the following new goals

Proof step 42:
i < 128, ~256 ≤ i ∨ i % 256 = 0, ~256 ≤ i ∨ i % 256 ≠ 0, i ≤ ~256 ∨ ~128 ≤ i, i < 128 ∨ 256 ≤ i, i < ~128 ∨ 128 ≤ i ⊦ int2bytes(i / 256) = int2bytes(i >> 8)
Proof step 47:
~256 ≤ i ∨ i % 256 = 0, ~256 ≤ i ∨ i % 256 ≠ 0, i ≤ ~256 ∨ ~128 ≤ i, i < 128 ∨ 256 ≤ i, i < ~128 ∨ 128 ≤ i ⊦ i < 128, int2bytes(i / 256) = int2bytes(i >> 8)

Rule argument

fma: i < 128

Additional information

Used formulas: i < 128