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Proof step 2 from proof bytes2int-first-lez (previous step)

⊦ b2i(int2bytes(i).first) < 0 ↔ ¬ 0 ≤ i

User applied rule insert rewrite lemma

And obtained the following new goals

Proof step 3:
⊦ i < 0 → b2i(int2bytes(i).first) < 0
Proof step 4:
¬ i < 0 ⊦ b2i(int2bytes(i).first) < 0 ↔ ¬ 0 ≤ i

Rule argument

name: int2bytes-first-neg rotate: F subst: [i] → [i]

Additional information

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