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Ramsey's theorem

In combinatorics, Ramsey's theorem, in one of its graph-theoretic forms, states that one will find monochromatic cliques in any edge labelling (with colours) of a sufficiently large complete graph.

Ramsey numbers, Induced Ramsey & Extensions of the theorem

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Examples

Proof

Ramsey numbers

Induced Ramsey

Extensions of the theorem

Reverse mathematics

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Ramsey's theorem

Nodes109
Edges108
Triples165
Avg. degree1.98
Density0.018349
Components1

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Ramsey's theorem

Top relations

related to References · 84
Ramsey's theorem → Addison-Wesley, Ajtai, Amer, Annals, Bian, Bibcode, Bohman, Bull, Chudak, Clark, Classic Papers, Combin, Combinatorial Methods, Combinatorial Problem, Combinatorics, Compositio Mathematica, Computer Applications, CRC Press, David, Endre
related to Infinite graphs · 18
Ramsey's theorem → As, Assuming, By, For, Further, Given, In, Inductively, Infinite Ramsey, Proof, Ramsey's, Take, The, This, Thus, We, Y1, Y2
related to history · 13
Ramsey's theorem → Deuber, Erdős, Hajnal, However, If, In, It, Paul Erdős, Pósa, Ramsey, Ramsey's, Rödl, Similar
related to Induced Ramsey · 12
Ramsey's theorem → Deuber, Erdős, Hajnal, In, Pósa, Ramsey, Ramsey's, Roughly, Rödl, Since, The, There
related to Ramsey numbers · 10
Ramsey's theorem → An, By, However, In, Paul Erdős, Ramsey, Ramsey's, The, The Ramsey, There
related to Uncountable cardinals · 10
Ramsey's theorem → In, Justin, Moore, On, Ramsey, Ramsey's, Stevo Todorčević, The, Wacław Sierpiński, ZFC
related to Hypergraphs · 9
Ramsey's theorem → Additionally, An, Brendan McKay, For, Ramsey, Ramsey's, Stanisław Radziszowski, The, This
related to Reverse mathematics · 8
Ramsey's theorem → ACA0, By, David Seetapun, In, Let, Ramsey's, Seetapun's, Some
is a · 1
Ramsey's theorem → foundational result in combinatorics

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Important terminology

displaystyle graph ramsey theorem vertices numbers number induced bound edges complete colours two monochromatic red proof graphs blue bounds erdős

Entity relationships Subject–Predicate–Object triples

SubjectPredicateObjectConfidenceSrc
Ramsey's theoremis afoundational result in combinatorics0.90text
Ramsey's theoremrelated to historySimilar0.60section
Ramsey's theoremrelated to historyRamsey's0.60section
Ramsey's theoremrelated to historyRamsey0.60section
Ramsey's theoremrelated to historyIn0.60section
Ramsey's theoremrelated to historyErdős0.60section
Ramsey's theoremrelated to historyHajnal0.60section
Ramsey's theoremrelated to historyPósa0.60section
Ramsey's theoremrelated to historyDeuber0.60section
Ramsey's theoremrelated to historyRödl0.60section
Ramsey's theoremrelated to historyHowever0.60section
Ramsey's theoremrelated to historyIt0.60section

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