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We prove that a property about divisibility is true by applying induction, we prove that it is true for n=1, we assume the induction hypothesis and we see that it is true for n+1. Subscribe to our channel and receive notifications with our new publications: http://www.youtube.com/subscription_c... Follow us on Google+: https://plus.google.com/b/10259227195... Follow us on Twitter: / juanmemol