How do I prove that a toffoli gate is a controlled CNOT gate. i.e,
$G_{Toffoli} = |0\rangle\langle 0| \otimes I + |1\rangle\langle 1|\otimes G_{CNOT}$.
I am not sure how to approach this, thoughts?
2026-03-26 17:29:53.1774546193
Quantum: Toffoli gates
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