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Vector Spaces

  • Thread starter Linday12
  • Start date
  • #1
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Homework Statement


I'm trying to define a vector space over Q. Does this make any sense?


Homework Equations


The properties of a vector space


The Attempt at a Solution



Let V=Q^2 over Q. It seems to me that everything would be defined and I shouldn't be able to do anything to a vector in this space to make it become an irrational or anything else that could let it step outside the field, so all the axioms of a vector space should hold.

This is the first class I've taken that actually deals with proofs, and I'm not following along too well. I was just wondering if you could do this. It seems quite similar to something like, Let V=R^2 over R.

So if I have something wrong here or make completely no sense, help would be appreciated. Thank you!
 

Answers and Replies

  • #2
radou
Homework Helper
3,115
6
Since scalars are taken from a field, and Q is certainly a field, your definition makes sense.
 

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