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Counting technique in combinatorics

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dbo:description
  • matematický vztah popisující velikost sjednocení množin (cs)
  • 組合數學的計數技巧,重複數算的數目要扣除 (zh)
  • counting technique in combinatorics (en)
  • identità matematica (it)
  • kombinatorikai leszámlálási technika (hu)
  • עיקרון קומבינטורי במתמטיקה בדידה ותורת הקבוצות (iw)
  • técnica de contagem em combinatória (pt)
  • Technik zur Bestimmung der Mächtigkeit einer mathematischen Menge (de)
  • técnica de contaxe que xeneraliza o método familiar de obter o número de elementos na unión de dous conxuntos finitos (gl)
  • równanie będące twierdzeniem kombinatoryki i częścią definicji w teorii miary (pl)
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  • 2803 (xsd:integer)
  • p/i050430 (en)
dbp:proof
  • Substitute on the right hand side of . Notice that appears once on both sides of . So we must show that for all with , the terms cancel out on the right hand side of . For that purpose, take a fixed such that and take an arbitrary fixed such that . Notice that must be a set for each positive or negative appearance of on the right hand side of that is obtained by way of the multiset such that . Now each appearance of on the right hand side of that is obtained by way of such that is a set that contains cancels out with the one that is obtained by way of the corresponding such that is a set that does not contain . This gives the desired result. (en)
dbp:title
  • Proof of (en)
  • Inclusion-and-exclusion principle (en)
  • principle of inclusion–exclusion (en)
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dct:subject
rdfs:label
  • Inclusion–exclusion principle (en)
  • Principi d'inclusió-exclusió (ca)
  • Princip inkluze a exkluze (cs)
  • Inkluziveco-ekskluda principo (eo)
  • Prinzip von Inklusion und Exklusion (de)
  • Bilketa (probabilitatea) (eu)
  • Principio de inclusión-exclusión (es)
  • Principe d'inclusion-exclusion (fr)
  • Principio di inclusione-esclusione (it)
  • 包除原理 (ja)
  • 포함배제의 원리 (ko)
  • Zasada włączeń i wyłączeń (pl)
  • Principe van inclusie en exclusie (nl)
  • Princípio da inclusão-exclusão (pt)
  • Формула включений-исключений (ru)
  • Principen om inklusion/exklusion (sv)
  • Формула включень-виключень (uk)
  • 排容原理 (zh)
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