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Proof step 5 from proof bytes2int-2-le-32767 (previous step)

0 < band(b2i(by1), 255) + 256 * b2i(by), 32767 < band(b2i(by1), 255) + 256 * b2i(by) ⊦

User applied rule cut formula

And obtained the following new goals

Proof step 6:
32768 ≤ band(b2i(by1), 255) + 256 * b2i(by), 0 < band(b2i(by1), 255) + 256 * b2i(by), 32767 < band(b2i(by1), 255) + 256 * b2i(by) ⊦

Rule argument

fma: 32768 ≤ band(b2i(by1), 255) + 256 * b2i(by)

Additional information

Used simplifier rules: ⊦ ¬ i ≤ j ↔ j < i;% ⊦ band(i, j) = band(j, i);% ⊦ i * j = j * i;% ⊦ i + j = j + i;%i + 1 = i0 ⊦ j < (* i0) → ¬ (* i) < j; Used formulas: 32768 ≤ band(b2i(by1), 255) + 256 * b2i(by)