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Proof step 6 from proof long-shiftzero-in (previous step)

l2i(lo) l>>> j < ~9223372036854775808, l2i(lo) l>>> j < 0 ⊦

User applied rule insert rewrite lemma

And obtained the following new goals

Proof step 7:
⊦ 0 ≤ i ∨ band(j, 63) ≠ 0 → ¬ i l>>> j < 0
Proof step 8:
¬(0 ≤ l2i(lo) ∨ band(j, 63) ≠ 0), l2i(lo) l>>> j < ~9223372036854775808, l2i(lo) l>>> j < 0 ⊦

Rule argument

seq: ⊦ 0 ≤ i ∨ band(j, 63) ≠ 0 → ¬ i l>>> j < 0 subst: [j, i] → [j, l2i(lo)] rotate: F spec: intops inst: name: longshiftzero-not-neg-01

Additional information

Used terms: j, l2i(lo)