Is Newton's first law a particular case of the second?

[Hobold]

There is not much to explain my question, really. First law says that the velocity of a body remains constant if there is no external force acting, which is just equivalent to second law, as a null force is equivalent to null acceleration, as mass cannot be null.

 

[Superstring]

Yep. I think the first law is only there to draw emphasis to this particular case.

 

[tenchotomic]

mathematically you can get first law from the second, but I think there is more to first law than that.First law provides definition of inertial frames and classical mechanics assumes the existence of such frames.