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Proof step 18 from proof long-shiftzero-in (previous step)

l2i(lo) < 0, 0 < >>>(64, l2i(lo), band(j, 63)), 9223372036854775807 < >>>(64, l2i(lo), band(j, 63)), ¬ 64 < # int2bits(l2i(lo)) ∧ ¬ band(j, 63) ≤ 0 → >>>(64, l2i(lo), band(j, 63)) < 9223372036854775808 ⊦

User applied rule case distinction

And obtained the following new goals

Rule argument

pos: left 4

Additional information

Used simplifier rules: ⊦ band(i, j) = band(j, i);%i + 1 = i0 ⊦ j < (* i0) → ¬ (* i) < j;