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Proof step 9 from proof byte-mult-256 (previous step)

j < 0 ⊦ i = 0, i2b(i * 256 + j) = i2b(j)

User applied rule insert rewrite lemma

And obtained the following new goals

Proof step 10:
⊦ i < 0 ∧ j < 0 → i2b(i * 256 + j) = i2b(j)
Proof step 11:
¬(i < 0 ∧ j < 0), j < 0 ⊦ i = 0, i2b(i * 256 + j) = i2b(j)

Rule argument

name: byte-mult-neg rotate: F subst: [j, i] → [j, i]

Additional information

Used terms: j, i