What is the relationship between span and dimension?

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SUMMARY

The discussion centers on the relationship between span and dimension in vector spaces, specifically addressing the impossibility of having a generating set for a vector space "x" with fewer than "n" vectors, where "n" represents the dimension of the basis of "x". It is established that all bases of a vector space must consist of linearly independent vectors, which confirms that removing any vector from the basis would violate the definition of a basis. The conversation emphasizes the necessity of understanding the mathematical definition of a basis to prove this concept effectively.

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Homework Statement



Hi, I have to prove that there's no exist a generating set for "x" with less of "n" vectors when "n" is the dimension of the basis of "x"

Homework Equations


is there a span(x) whith dimension m? when m<n and n is the dimension of the basis

The Attempt at a Solution



I know that all the basis of a vectorial space must have the same dimension, and the basis have linearly independient vectors, so I can't remove any of them, but I don't know how sow that its not possible that existence of that span
 
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to start this proof, I think you need to start with a mathematical definition of what a basis actually is.
 

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