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Proof step 1 from proof fits-law-shr (conclusion)

⊦ b2i(by) i>> i = b2i(i2b(b2i(by) i>> i))

User applied rule insert rewrite lemma

And obtained the following new goals

Proof step 2:
⊦ i i>> j = i i>> band(j, 31)
Proof step 3:
⊦ b2i(by) i>> band(i, 31) = b2i(i2b(b2i(by) i>> band(i, 31)))

Rule argument

seq: ⊦ i i>> j = i i>> band(j, 31) subst: [j, i] → [i, b2i(by)] rotate: F spec: intops inst: name: shiftrsign-band31

Additional information

Used terms: i, b2i(by)