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Proof step 4 from proof int2bytes-len-one (previous step)

¬(~128 ≤ i ∧ i < 128), int2bytes(i) = by ' ⊦ i = b2i(by)

Heuristic simplifier applied rule simplifier

And obtained the following new goals

Proof step 5:
int2bytes(i) = by ' ⊦ i = b2i(by), ¬ i < ~128 ∧ ¬ 128 ≤ i

Rule argument

Additional information

Used simplifier rules: ⊦ ¬ i < j ↔ j ≤ i;% ⊦ ¬ i ≤ j ↔ j < i;