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Proof step 7 from proof int2bits-truetrue (previous step)

j < 0, sgn(bitsinvert(uint2bits(abs(j))) +1) = true ' + true ', j < 0 ⊦ j = 0

Heuristic simplifier applied rule simplifier

And closed the goal!

Rule argument

Additional information

Used simplifier rules: ⊦ (bits + bits0) + bits1 = bits + bits0 + bits1;% ⊦ sgn(bits) ≠ boolvar ' + boolvar ';% ⊦ i < 0 → abs(i) = ~ i;