Journal of Formalized Mathematics
Volume 9, 1997
University of Bialystok
Copyright (c) 1997
Association of Mizar Users
Projections in $n$-Dimensional Euclidean Space to Each Coordinates
-
Roman Matuszewski
-
University of Bialystok
-
The work was done, while the author stayed at Nagano in the fall of 1996.
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Yatsuka Nakamura
-
Shinshu University, Nagano
Summary.
-
In the $n$-dimensional Euclidean space ${\cal E}^n_{\rm T}$, a projection operator
to each coordinate is defined. It is proven that such an operator is
linear. Moreover, it is continuous as a mapping from ${\cal E}^n_{\rm T}$
to ${R}^{1}$, the carrier of which is a set of all reals.
If $n$ is 1, the projection becomes a homeomorphism, which means
that ${\cal E}^1_{\rm T}$ is homeomorphic to ${R}^{1}$.
The terminology and notation used in this paper have been
introduced in the following articles
[22]
[27]
[2]
[24]
[16]
[1]
[26]
[10]
[21]
[28]
[3]
[12]
[7]
[8]
[6]
[25]
[4]
[15]
[14]
[20]
[23]
[17]
[13]
[18]
[9]
[19]
[11]
[5]
-
Projections
-
Continuity of Projections
-
1-dimensional and 2-dimensional Cases
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Received November 3, 1997
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