Journal of Formalized Mathematics
Volume 15, 2003
University of Bialystok
Copyright (c) 2003 Association of Mizar Users

Convex Hull, Set of Convex Combinations and Convex Cone


Noboru Endou
Gifu National College of Technology
Yasunari Shidama
Shinshu University, Nagano

Summary.

In this article, there are two themes. One of them is the proof that convex hull of a given subset $M$ consists of all convex combinations of $M.$ Another is definitions of cone and convex cone and some properties of them.

MML Identifier: CONVEX3

The terminology and notation used in this paper have been introduced in the following articles [7] [11] [8] [2] [12] [3] [5] [1] [4] [9] [10] [6]

Contents (PDF format)

  1. Equality of Convex Hull and Set of Convex Combinations
  2. Cone and Convex Cone

Bibliography

[1] Grzegorz Bancerek. Cardinal numbers. Journal of Formalized Mathematics, 1, 1989.
[2] Grzegorz Bancerek and Krzysztof Hryniewiecki. Segments of natural numbers and finite sequences. Journal of Formalized Mathematics, 1, 1989.
[3] Czeslaw Bylinski. Functions and their basic properties. Journal of Formalized Mathematics, 1, 1989.
[4] Czeslaw Bylinski. Functions from a set to a set. Journal of Formalized Mathematics, 1, 1989.
[5] Agata Darmochwal. Finite sets. Journal of Formalized Mathematics, 1, 1989.
[6] Noboru Endou, Takashi Mitsuishi, and Yasunari Shidama. Convex sets and convex combinations. Journal of Formalized Mathematics, 14, 2002.
[7] Andrzej Trybulec. Tarski Grothendieck set theory. Journal of Formalized Mathematics, Axiomatics, 1989.
[8] Andrzej Trybulec. Subsets of real numbers. Journal of Formalized Mathematics, Addenda, 2003.
[9] Wojciech A. Trybulec. Vectors in real linear space. Journal of Formalized Mathematics, 1, 1989.
[10] Wojciech A. Trybulec. Linear combinations in real linear space. Journal of Formalized Mathematics, 2, 1990.
[11] Zinaida Trybulec. Properties of subsets. Journal of Formalized Mathematics, 1, 1989.
[12] Edmund Woronowicz. Relations and their basic properties. Journal of Formalized Mathematics, 1, 1989.

Received June 16, 2003


[ Download a postscript version, MML identifier index, Mizar home page]