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Proof step 3 from proof ubits2ubits-pos (previous step)

bits = boolvar + bits0 ⊦ bits = [], uint2bits(bits2uint(bits)) = sgn(bits), boolvar

Heuristic simplifier applied rule simplifier

And obtained the following new goals

Proof step 4:
⊦ uint2bits(bits2uint(bits0)) = sgn(false ' + bits0)

Rule argument

Additional information

Used simplifier rules: bits2uint-zeros-03: ⊦ bits2uint(false ' + bits) = bits2uint(bits);% ⊦ (bits + bits0) + bits1 = bits + bits0 + bits1;% ⊦ boolvar ' + bits ≠ [];% ⊦ boolvar + bits = boolvar ' + bits;