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Proof step 2 from proof longshiftright-2pot-pos (previous step)

j < 64, 0 ≤ i, 0 < j ⊦ i l>> j = i / 2 ^ j

User applied rule insert rewrite lemma

And obtained the following new goals

Proof step 3:
⊦ j l>> i = j >> band(i, 63)
Proof step 4:
j < 64, 0 ≤ i, 0 < j ⊦ i >> band(j, 63) = i / 2 ^ j

Rule argument

name: longshiftright-def-unbounded rotate: F subst: [i, j] → [j, i]

Additional information

Used terms: j, i