On the grid Ramsey problem and related questions
<p>The Hales–Jewett theorem is one of the pillars of Ramsey theory, from which many other results follow. A celebrated theorem of Shelah says that Hales–Jewett numbers are primitive recursive. A key tool used in his proof, now known as the cube lemma, has become famous in its own right. In it...
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| Médium: | Journal article |
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Oxford University Press
2014
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