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

Contents (PDF format)

Bibliography

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