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Proof step 1 from proof longshiftzero-def-unbounded (conclusion)

⊦ j l>>> i = >>>(64, j, band(i, 63))

User applied rule insert rewrite lemma

And obtained the following new goals

Proof step 2:
⊦ i l>>> j = bits2int(sublist(0, # fillsgn(64, int2bits(i)), mklist(false, i→n(band(j, 63))) + fillsgn(64, int2bits(i))))
Proof step 3:
⊦ bits2int(sublist(0, # fillsgn(64, int2bits(j)), mklist(false, i→n(band(i, 63))) + fillsgn(64, int2bits(j)))) = >>>(64, j, band(i, 63))

Rule argument

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

Additional information

Used terms: i, j