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Proof step 27 from proof int2bits-rec-neg (previous step)

¬ (¬ true) ∈ bitsinvert(uint2bits(1 - i)) +1, i < 0 ⊦ i = 0, sgn(bitsinvert(uint2bits(1 - i)) +1 + true ') = sgn(bitsinvert(uint2bits(1 - i)) +1) + true '

Heuristic simplifier applied rule simplifier

And obtained the following new goals

Proof step 28:
i < 0 ⊦ i = 0, sgn(bitsinvert(uint2bits(1 - i)) +1 + true ') = sgn(bitsinvert(uint2bits(1 - i)) +1) + true ', false ∈ bitsinvert(uint2bits(1 - i)) +1

Proof step 27 from proof int2bits-rec-neg (previous step)

Heuristic simplifier applied rule simplifier

And obtained the following new goals

Rule argument

Additional information