Saturday, 27 April 2013

summation - Induction proof concerning a sum of binomial coefficients: sumnj=mbinomjm=binomn+1m+1

I'm looking for a proof of this identity but where j=m not j=0




http://www.proofwiki.org/wiki/Sum_of_Binomial_Coefficients_over_Upper_Index



\sum_{j=m}^n\binom{j}{m}=\binom{n+1}{m+1}

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