A Hall Criterion for Countable Families of Sets

DOI10.1112/jlms/s2-21.1.1zbMath0436.04004OpenAlexW1995779182MaRDI QIDQ3875931

Karsten Steffens, Michael Holz, Klaus-Peter Podewski

Publication date: 1980

Published in: Journal of the London Mathematical Society (Search for Journal in Brave)

Full work available at URL: https://doi.org/10.1112/jlms/s2-21.1.1

zbMATH Keywords

transversalsHall's theoremexistence of injective choice functions for countable families of sets

Mathematics Subject Classification ID

Permutations, words, matrices (05A05) Other combinatorial set theory (03E05)

This page was built for publication: A Hall Criterion for Countable Families of Sets