# Math Help - Vector spaces

1. ## Vector spaces

Hi,

can somebody help with problems i have attached?

Thanks.

2. ## Re: Vector spaces

Every one of those asks that you show that a given set, with given operations, is a "vector space" of a certain dimension. What you need to do, of course, is show that the definition of "vector space" is satisfied. Okay, what is the definition of "vector space"? What is the definition of "dimension" of a vector space?