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Heron's Formula and Ptolemy's Theorem Cover

Heron's Formula and Ptolemy's Theorem

Formalized Mathematics
Volume 16 (2008): Issue 2 (June 2008)
By: Marco Riccardi  
Open Access
|Mar 2009

References

  1. [1] Kanchun and Yatsuka Nakamura. The inner product of finite sequences and of points of n-dimensional topological space. Formalized Mathematics, 11(2):179-183, 2003.
    Search in Google Scholar
  2. [2] Grzegorz Bancerek. The ordinal numbers. Formalized Mathematics, 1(1):91-96, 1990.
    Search in Google Scholar
  3. [3] Leszek Borys. Paracompact and metrizable spaces. Formalized Mathematics, 2(4):481-485, 1991.
    Search in Google Scholar
  4. [4] Czesław Byliński. The complex numbers. Formalized Mathematics, 1(3):507-513, 1990.
    Search in Google Scholar
  5. [5] Czesław Byliński. Some basic properties of sets. Formalized Mathematics, 1(1):47-53, 1990.
    Search in Google Scholar
  6. [6] Wenpai Chang, Yatsuka Nakamura, and Piotr Rudnicki. Inner products and angles of complex numbers. Formalized Mathematics, 11(3):275-280, 2003.
    Search in Google Scholar
  7. [7] Agata Darmochwał and Yatsuka Nakamura. Metric spaces as topological spaces - fundamental concepts. Formalized Mathematics, 2(4):605-608, 1991.
    Search in Google Scholar
  8. [8] Agata Darmochwał and Yatsuka Nakamura. The topological space ε2/T. Arcs, line segments and special polygonal arcs. Formalized Mathematics, 2(5):617-621, 1991.
    Search in Google Scholar
  9. [9] Krzysztof Hryniewiecki. Basic properties of real numbers. Formalized Mathematics, 1(1):35-40, 1990.
    Search in Google Scholar
  10. [10] Stanisława Kanas, Adam Lecko, and Mariusz Startek. Metric spaces. Formalized Mathematics, 1(3):607-610, 1990.
    Search in Google Scholar
  11. [11] Akihiro Kubo and Yatsuka Nakamura. Angle and triangle in Euclidian topological space. Formalized Mathematics, 11(3):281-287, 2003.
    Search in Google Scholar
  12. [12] Yatsuka Nakamura. General Fashoda meet theorem for unit circle and square. Formalized Mathematics, 11(3):213-224, 2003.
    Search in Google Scholar
  13. [13] Beata Padlewska and Agata Darmochwał. Topological spaces and continuous functions. Formalized Mathematics, 1(1):223-230, 1990.
    Search in Google Scholar
  14. [14] Andrzej Trybulec and Czesław Byliński. Some properties of real numbers. Formalized Mathematics, 1(3):445-449, 1990.
    Search in Google Scholar
  15. [15] Michał J. Trybulec. Integers. Formalized Mathematics, 1(3):501-505, 1990.
    Search in Google Scholar
  16. [16] Zinaida Trybulec. Properties of subsets. Formalized Mathematics, 1(1):67-71, 1990.
    Search in Google Scholar
  17. [17] Freek Wiedijk. Formalizing 100 theorems. http://www.cs.ru.nl/freek/100
    Search in Google Scholar
  18. [18] Yuguang Yang and Yasunari Shidama. Trigonometric functions and existence of circle ratio. Formalized Mathematics, 7(2):255-263, 1998.
    Search in Google Scholar
DOI: https://doi.org/10.2478/v10037-008-0014-2 | Journal eISSN: 1898-9934 | Journal ISSN: 1426-2630
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Language: English
Page range: 97 - 101
Published on: Mar 20, 2009
Published by: University of Białystok
In partnership with: Paradigm Publishing Services
Publication frequency: 1 issue per year
Related subjects:
Computer sciences,
Computer sciences, other,
Mathematics,
General mathematics

© 2009 Marco Riccardi, published by University of Białystok
This work is licensed under the Creative Commons License.

Volume 16 (2008): Issue 2 (June 2008)