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Proof step 78 from proof setInt-theorem (previous step)

i >> 16 = ~1, i >> 24 = b2i(i2b(i >> 8)) >> 16, b2i(i2b(i >> 8)) < 0, i < ~128, i < 0 ⊦ i = b2i(i2b(i)), i2b(~1) = i2b(i >> 24)

User applied rule insert equation

And obtained the following new goals

Proof step 79:
i >> 16 = ~1, b2i(i2b(i >> 8)) < 0, i < ~128, i < 0 ⊦ i = b2i(i2b(i)), i2b(~1) = i2b(b2i(i2b(i >> 8)) >> 16)

Rule argument

pos: left 2 flags: discard

Additional information