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Article

Title: O vyjádřitelnosti kombinačních čísel (Czech)
Author: Malý, Martin
Language: Czech
Journal: Rozhledy matematicko-fyzikální
ISSN: 0035-9343 (print)
Volume: 88
Issue: 3
Year: 2013
Pages: 2-8
Summary lang: English
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Category: math
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Summary: The article deals with the identity $$\sum_{i=0}^{n-k}\binom{n-p-1-i}{k-p-1}\cdot\binom{p+i}p = \binom nk$$, where $k, n, p$ are nonnegative integers meeting the condition $p < k \leq n$. The validity of the identity is discussed and the idea of its proof is outlined. (English)
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Date available: 2017-05-05T06:31:22Z
Last updated: 2017-05-05
Stable URL: http://hdl.handle.net/10338.dmlcz/146530
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