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Proof step 2 from proof band-011x-neg-04 (previous step)

0 ≤ i ⊦ band(j, i) = band((i + 1) + j, i), false ∈ int2bits(i).rest

User applied rule cut formula

And obtained the following new goals

Proof step 3:
j = ~ ~ j, 0 ≤ i ⊦ band(j, i) = band((i + 1) + j, i), false ∈ int2bits(i).rest

Rule argument

fma: j = ~ ~ j

Additional information

Used simplifier rules: ⊦ ~ ~ i = i; Used formulas: j = ~ ~ j