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Proof step 2 from proof int2bytes-one-01 (previous step)

# int2bytes(i) = 1, 0 < i, 127 < i ⊦

User applied rule insert lemma

And obtained the following new goals

Proof step 3:
⊦ # int2bytes(i) = 1 → ~128 ≤ i ∧ i ≤ 127

Rule argument

name: int2bytes-one subst: [i] → [i]

Additional information

Used simplifier rules: ⊦ i < j → (¬ ¬ j ≤ i ↔ false); Used terms: i