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Proof step 18 from proof bor-2pot-plus-01 (previous step)

bitsinvert(sgn(bitsinvert(uint2bits(~ j)) +1)) ≠ [] ∧ true ' = true ', j < 0, j ≤ 0 ⊦ bits2int(bitsinvert(bitsinvert(sgn(bitsinvert(uint2bits(~ j)) +1)))) = j

Heuristic simplifier applied rule simplifier

And obtained the following new goals

Proof step 19:
j < 0, j ≤ 0 ⊦ bits2int(bitsinvert(uint2bits(~ j)) +1) = j, bitsinvert(uint2bits(~ j)) +1 = []

Rule argument

Additional information

Used simplifier rules: ⊦ sgn(bits) = [] ↔ bits = [];% ⊦ bitsinvert(bits) = [] ↔ bits = [];% ⊦ bits2int(sgn(bits)) = bits2int(bits);% ⊦ bitsinvert(bitsinvert(bits)) = bits;