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Proof step 1 from proof bytes2int-size-07 (conclusion)

⊦ 0 ≤ b2i(by) → bytes2int(i2b(~1) ' + by ' + bytes) < ~(2 ^ (8 * (n→i(# bytes) + 1) - 1))

Heuristic simplifier applied rule simplifier

And obtained the following new goals

Proof step 2:
0 ≤ b2i(by), 0 ≤ bytes2int(i2b(~1) ' + by ' + bytes) + 2 ^ (8 * (n→i(# bytes) + 1) - 1) ⊦

Rule argument

Additional information

Used simplifier rules: ⊦ i ≤ j ∧ 0 ≤ i → 0 ≤ j; (forward)% ⊦ ¬ i < j ↔ j ≤ i;% ⊦ i < ~ j ↔ i + j < 0;