Journal of Formalized Mathematics
Volume 2, 1990
University of Bialystok
Copyright (c) 1990 Association of Mizar Users

K\"onig's Theorem

Grzegorz Bancerek
Warsaw University, Bialystok

Summary.

In the article the sum and product of any number of cardinals are introduced and their relationships to addition, multiplication and to other concepts are shown. Then the K\"onig's theorem is proved. The theorem that the cardinal of union of increasing family of sets of power less than some cardinal {\bf m} is not greater than {\bf m}, is given too.

MML Identifier: CARD_3

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

Contents (PDF format)

Bibliography

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