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Proof step 5 from proof byte-nls-02 (previous step)

~128 ≤ b2i(by), b2i(by) < 0, 0 ≤ i, 0 < i, i + b2i(by) < 0, 128 ≤ i ⊦

User applied rule cut formula

And obtained the following new goals

Proof step 6:
~128 ≤ b2i(by), b2i(by) < 0, 0 ≤ i, 0 < i, i + b2i(by) < 0, 128 ≤ i ⊦ 128 + b2i(by) < 0

Rule argument

fma: 128 + b2i(by) < 0

Additional information

Used simplifier rules: byte-nls: ⊦ ¬ b2i(by) < ~128;% ⊦ i + (* j) < (* j0) ↔ i < j0 - j;% ⊦ i + j + i0 = (i + j) + i0;% ⊦ i + j = j + i; Used formulas: 128 + b2i(by) < 0