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Proof step 17 from proof int2int-inj (previous step)

uint2bits(~ i) = false ' + true ' + bits, false ∈ uint2bits(~ i), sgn(bitsinvert(uint2bits(~ i)) +1).first, i < 0 ⊦ bits2uint((false ' + bitsinvert(sgn(bitsinvert(uint2bits(~ i)) +1).rest))+1) + i = 0

User applied rule insert equation

And obtained the following new goals

Proof step 18:
uint2bits(~ i) = false ' + true ' + bits, false ∈ false ' + true ' + bits, sgn(bitsinvert(false ' + true ' + bits) +1).first, i < 0 ⊦ bits2uint((false ' + bitsinvert(sgn(bitsinvert(false ' + true ' + bits) +1).rest))+1) + i = 0

Rule argument

pos: left 1 flags:

Proof step 17 from proof int2int-inj (previous step)

User applied rule insert equation

And obtained the following new goals

Rule argument

Additional information