Recent content by Ella087

  1. E

    Undergrad Proof of n(n-1)/2 as the Number of 2-Subsets in an n-Set

    Prove by induction that the number of 2-subsets of an n-set A equals n(n-1)/2.
  2. E

    Undergrad Proving 2-Subsets of an n-Set A Equals n(n-1)/2

    Prove by induction that the number of 2-subsets of an n-set A equals n(n-1)/2.
  3. E

    Undergrad PROOF: Independent vectors and spanning vectors

    Proof: 1. why you need at least m vectors to span a space of dimension m. 2. If m vectors span an m-dimensional space, then they form a basis of the space.