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Proof step 21 from proof rightshift-8-02 (previous step)

int2bytes(i) = by ', 0 ≤ i ⊦ i / 256 = 0

User applied rule insert rewrite lemma

And obtained the following new goals

Proof step 22:
abs(i) < abs(j) ⊦ i / j = 0
Proof step 23:
¬ abs(i) < abs(256), int2bytes(i) = by ', 0 ≤ i ⊦ i / 256 = 0

Rule argument

seq: abs(i) < abs(j) ⊦ i / j = 0 subst: [j, i] → [256, i] rotate: F spec: int-div inst: name: div-zero-02

Additional information

Used terms: 256, i