@ARTICLE{Hawranek_Jacek_Some_2018,
 author={Hawranek, Jacek and Zygmunt, Jan},
 number={No 3},
 journal={Przegląd Filozoficzny. Nowa Seria},
 pages={163-174},
 howpublished={online},
 year={2018},
 publisher={Komitet Nauk Filozoficznych PAN},
 publisher={Wydział Filozofii Uniwersytetu Warszawskiego},
 abstract={Bogusław Wolniewicz, inspired by his formal ontology of situations, has put forward a question on semilattices with a unit (A question about joinsemilattices, Bulletin of the Section of Logic 19/3, 1990). The present paper is entirely devoted to this problem in the formulation given by Wolniewicz. First, the meaning of the question is analyzed and its lattice-theoretical and Boolean algebraic contents are exhibited. Second, set-theoretical and topological counterparts of the question are formulated and commented upon.},
 type={Artykuły / Articles},
 title={Some comments on a question about semilattices with a unit},
 URL={http://www.journals.pan.pl/Content/109482/PDF/P.Filoz.%203-18%2014-J.Hawranek%20i%20in.pdf},
 doi={10.24425/pfns.2018.125459},
 keywords={join-semilattice, minimal element, B. Wolniewicz’s question, formal ontology of situations, topological space, dense set, Boolean algebra, filter, consequence operation, independent set},
}