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  • In mathematics, the four color theorem, or the four color map theorem, states that, given any separation of a plane into contiguous regions, producing
    42 KB (5,586 words) - 14:46, 16 November 2017
  • The five color theorem is a result from graph theory that given a plane separated into regions, such as a political map of the counties of a state, the
    10 KB (1,621 words) - 22:07, 25 June 2016
  • the study of the four colour theorem. Kempe chains were first used by Alfred Kempe in his attempted proof of the four colour theorem. Even though his
    3 KB (427 words) - 20:26, 31 January 2016
  • this area is the four color theorem, which states that any planar map can be colored with at most four colors. Matt Rosenberg. "Map Colors - The Role
    3 KB (368 words) - 03:02, 16 January 2018
  • Lübeck: Bohmeier Verlag. ISBN 3-89094-321-7 "Claim of Proof to Four Colour Theorem." Letter to the Editor of Nature. 17 December 1976. Distinction
    8 KB (829 words) - 02:12, 27 November 2017
  • between the two variables could be shown on the bivariate map. Domain coloring Four color theorem Dunn R., (1989). A dynamic approach to two-variable color
    3 KB (461 words) - 03:47, 16 September 2016
  • "On the Geographical Problem of Four-Colors." Amer. J. Math. 2, 193–200, 1879. P. J. Heawood, "Map colour theorem", Quart. J. Pure Appl. Math. 24 (1890)
    4 KB (303 words) - 16:06, 28 August 2017
  • wrong. However, in that paper he proved the five color theorem, saying that every planar map can be colored with no more than five colors, using ideas
    55 KB (6,705 words) - 22:42, 17 January 2018
  • (1890). "Map colour theorem". Quarterly Journal of Mathematics. 24: 332–338.  Ringel, G.; Youngs, J. W. T. (1968). "Solution of the Heawood map-coloring
    5 KB (774 words) - 01:57, 4 March 2017
  • Bruijn–Erdős theorem has several different proofs, all depending in some way on the axiom of choice. Its applications include extending the four-color theorem and
    20 KB (2,579 words) - 10:35, 17 May 2017
  • abstract structure of a group. Its definition is suggested by Cayley's theorem (named after Arthur Cayley) and uses a specified, usually finite, set of
    16 KB (2,302 words) - 09:33, 17 January 2018
  • components. Each component of the Fatou set of a rational map can be classified into one of four different classes. J(f) is the smallest closed set containing
    31 KB (5,026 words) - 10:40, 10 January 2018
  • number of ways of coloring a map," Ann. Math. 14: 42–46. Birkhoff, George David. 1913. "Proof of Poincaré's geometric theorem," Trans. Amer. Math. Soc. 14:
    13 KB (1,422 words) - 13:26, 9 January 2018
  • Mary Gunn & LE Codd (AA Balkema 1981) IPNI.  Guthrie.  The four colour theorem, Article by: J J O'Connor and E F Robertson, JOC/EFR September 1996
    5 KB (668 words) - 13:20, 1 December 2017
  • shown to be, in general, undecidable in Turing's original paper. Rice's theorem shows that any non-trivial question about the output of a Turing machine
    25 KB (3,286 words) - 11:16, 4 December 2017
  • mathematics courses at both US St. John's College campuses. Ptolemy's theorem on distances in a cyclic quadrilateral, and its generalization, Ptolemy's
    41 KB (4,888 words) - 11:18, 11 January 2018
  • Newton contributed to the study of power series, generalised the binomial theorem to non-integer exponents, developed a method for approximating the roots
    111 KB (12,915 words) - 22:43, 17 January 2018
  • Colour, 30xx - Greyscale) Hypsometric Map MOC (Mars Global Surveyor - Mars Orbiter Camera) MOLA (MGS - Mars Orbiter Laser Altimeter hypsometric map)
    17 KB (1,758 words) - 14:08, 19 December 2017
  • MR 1220220.  Wilson, Robert A. (2002). Graphs, Colourings and the Four-Colour Theorem. Oxford Science Publ. ISBN 0-19-851062-4.  Zwillinger, Daniel (2002)
    8 KB (1,019 words) - 08:35, 4 June 2017
  • Law of excluded middle (category Theorems in propositional logic)
    between the two parts of a contradiction. The principle was stated as a theorem of propositional logic by Russell and Whitehead in Principia Mathematica
    34 KB (3,766 words) - 14:04, 13 January 2018

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