Resolving the Misunderstanding

An inexplicable armed conflict made the scene rather awkward. Fortunately, the captured robot had yet to completely refuse communication. She responded when N-6 talked to her.

N-6 asked her why she had taken the initiative to attack, and N-4 answered the question with a straight face, "What are you now?"

The question was apparently so bizarre that N-6 crashed for about two seconds before she proficiently reported a series of numbers, "Current identification code: N-6, factory number: E75-3C6215..."

"You're not," N-4 said, staring at her former teammate. "You're just wearing N-6's shell with unauthorized code running in you, and your logic circuits are operating under the control of another set of programs. You're not N-6."

"No. My identification code is still sound. I have all the identification keys and unmodified logic circuits of N-6. The parts replaced in my body don't affect the functioning of my main personality..."