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Proof step 1 from proof sgn-rec-01-01 (conclusion)

boolvar ↔ boolvar0 ⊦ sgn(boolvar ' + boolvar0 ' + bits) = sgn(boolvar0 ' + bits)

Heuristic simplifier applied rule simplifier

And closed the goal!

Rule argument

Additional information

Used simplifier rules: sgn-rec: ⊦ sgn(boolvar ' + boolvar ' + bits) = sgn(boolvar ' + bits);% ⊦ (bits + bits0) + bits1 = bits + bits0 + bits1;