Some Topological Properties of Cells in $R^2$

Journal of Formalized Mathematics
Volume 8, 1996
University of Bialystok
Copyright (c) 1996 Association of Mizar Users

Some Topological Properties of Cells in $R^2$

Yatsuka Nakamura: Shinshu University, Nagano
Andrzej Trybulec: Warsaw University, Bialystok

Summary.

We examine the topological property of cells (rectangles) in a plane. First, some Fraenkel expressions of cells are shown. Second, it is proved that cells are closed. The last theorem asserts that the closure of the interior of a cell is the same as itself.

MML Identifier: GOBRD11

The terminology and notation used in this paper have been introduced in the following articles [14] [15] [5] [8] [2] [1] [13] [3] [6] [7] [16] [12] [4] [9] [10] [11]

Contents (PDF format)

Bibliography

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Received July 22, 1996

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