Journal of Formalized Mathematics
Volume 2, 1990
University of Bialystok
Copyright (c) 1990
Association of Mizar Users
The Lattice of Real Numbers.
The Lattice of Real Functions
-
Marek Chmur
-
Warsaw University, Bialystok
-
Supported by RPBP.III-24.C1.
Summary.
-
A proof of the fact, that
$\llangle {\Bbb R}, {\rm max}, {\rm min} \rrangle$ is
a lattice (real lattice). Some basic properties (real lattice is
distributive and modular) of it are proved.
The same is done for the set ${\Bbb R}^A$ with operations:
max($f(A)$) and min($f(A)$), where ${\Bbb R}^A$ means the
set of all functions from $A$
(being non-empty set) to $\Bbb R$, $f$ is just such a function.
The terminology and notation used in this paper have been
introduced in the following articles
[7]
[5]
[6]
[9]
[1]
[3]
[8]
[2]
[4]
Contents (PDF format)
Bibliography
- [1]
Czeslaw Bylinski.
Binary operations.
Journal of Formalized Mathematics,
1, 1989.
- [2]
Czeslaw Bylinski.
Functions from a set to a set.
Journal of Formalized Mathematics,
1, 1989.
- [3]
Henryk Oryszczyszyn and Krzysztof Prazmowski.
Real functions spaces.
Journal of Formalized Mathematics,
2, 1990.
- [4]
Andrzej Trybulec.
Function domains and Fr\aenkel operator.
Journal of Formalized Mathematics,
2, 1990.
- [5]
Andrzej Trybulec.
Subsets of real numbers.
Journal of Formalized Mathematics,
Addenda, 2003.
- [6]
Andrzej Trybulec and Czeslaw Bylinski.
Some properties of real numbers operations: min, max, square, and square root.
Journal of Formalized Mathematics,
1, 1989.
- [7]
Zinaida Trybulec.
Properties of subsets.
Journal of Formalized Mathematics,
1, 1989.
- [8]
Edmund Woronowicz.
Relations and their basic properties.
Journal of Formalized Mathematics,
1, 1989.
- [9]
Stanislaw Zukowski.
Introduction to lattice theory.
Journal of Formalized Mathematics,
1, 1989.
Received May 22, 1990
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