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Proof step 6 from proof longshiftzero-pos (previous step)

0 ≤ i ⊦ >>>(64, i, band(j, 63)) = i >> band(j, 63)

User applied rule insert rewrite lemma

And obtained the following new goals

Proof step 7:
⊦ 0 ≤ i → >>>(n, i, j) = i >> j

Rule argument

name: shiftzero-pos rotate: F subst: [j, i, n] → [band(j, 63), i, 64]

Additional information

Used simplifier rules: band-commutativity: ⊦ band(i, j) = band(j, i); Used terms: band(j, 63), i, 64