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September 19th, 2011, 08:59 AM  #1 
Senior Member Joined: Sep 2011 Posts: 395 Thanks: 0  Proof by Induction  Divisibility Proofs Q. Prove by induction that... (see attachment) Notes: For the line beginning "Show that n = k + 1..." I think I may have gone wrong in the calculation here, but I'm not exactly sure. Thank you. 
September 19th, 2011, 09:19 AM  #2 
Senior Member Joined: Jul 2010 From: St. Augustine, FL., U.S.A.'s oldest city Posts: 12,163 Thanks: 472 Math Focus: Calculus/ODEs  Re: Proof by Induction  Divisibility Proofs
We need to prove by induction: where You have already shown the base case is valid. Thus, our induction hypothesis is: Let's add a multiple of 8 to each side: We have derived from completing the proof by induction. 
September 19th, 2011, 10:20 AM  #3 
Senior Member Joined: Sep 2011 Posts: 395 Thanks: 0  Re: Proof by Induction  Divisibility Proofs
Thank you for the help. Much obliged.


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divisibility, induction, proof, proofs 
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