Gapplet

Given some vectors in (Z/pZ)n, determine the dimension of the subspace they generate.

Input prime p, 
e.g., 7 		</COMMENT>
Input a matrix of vectors, 
e.g., [[1,2,3,4,5],[0,1,2,3,4]].  		</COMMENT>
 
 
Compute the dimension k of the linear space (code) spanned by the rows of the matrix 
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