Proof by Contrapositive Example

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In this video, we prove the following result: if 3|a^2 then 3|a for any integer a.

#Contrapositive #IndirectProof #Lemma
  1. Route66 Math
  2. Proof by Contrapositive
  3. Contrapositive
  4. Indirect Proof
  5. Indirect Proof Examples
  6. Proof by Contrapositive Example
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