TY - JOUR
N2 - 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.
L1 - http://so.czasopisma.pan.pl/Content/109482/PDF/P.Filoz.+3-18+14-J.Hawranek+i+in.pdf
L2 - http://so.czasopisma.pan.pl/Content/109482
PY - 2018
IS - No 3
EP - 163-174
KW - join-semilattice
KW - minimal element
KW - B. Wolniewicz’s question
KW - formal ontology of situations
KW - topological space
KW - dense set
KW - Boolean algebra
KW - filter
KW - consequence operation
KW - independent set
A1 - Hawranek, Jacek
A1 - Zygmunt, Jan
PB - Komitet Nauk Filozoficznych PAN
PB - Wydział Filozofii Uniwersytetu Warszawskiego
SP - 163-174
T1 - Some comments on a question about semilattices with a unit
DA - 2018.12.04
UR - http://so.czasopisma.pan.pl/dlibra/publication/edition/109482
DOI - 10.24425/pfns.2018.125459
ER -