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Oops. Yes. 6.005 is a requirement for 6-3 and for 6-7. It is only a requirement for 6-2 if you want to use it and it is not a requirement for 6-1 at all. For the curious, there is more info here: [MIT</a> Course Catalog: Course 6-1, 6-2, 6-3](<a href=“Welcome! < MIT”>Welcome! < MIT)</p>