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Proof step 2 from proof byte-011x-pos-01 (previous step)

band(b2i(by), 255) < 128, 0 ≤ band(b2i(by), 255) ⊦ b2i(by) = band(b2i(by), 255)

User applied rule insert rewrite lemma

And obtained the following new goals

Rule argument

name: byte-011x-pos rotate: F subst: [by] → [by]

Additional information

Used simplifier rules: byte-011x-neg: ⊦ b2i(by) < 0 → band(b2i(by), 255) = b2i(by) + 256;%byte-nls: ⊦ ¬ b2i(by) < ~128;% ⊦ ¬ i ≤ j ↔ j < i;% ⊦ band(i, band(i0, j)) = band(band(i, i0), j);% ⊦ band(i, j) = band(j, i);% ⊦ i = i + j ↔ j = 0;% ⊦ i + j + i0 = (i + j) + i0;% ⊦ i + j = j + i;% ⊦ i + (* j) < (* j0) ↔ i < j0 - j; Used terms: by