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.

JO - Przegląd Filozoficzny. Nowa Seria
L1 - http://www.czasopisma.pan.pl/Content/109482/PDF/P.Filoz.+3-18+14-J.Hawranek+i+in.pdf
L2 - http://www.czasopisma.pan.pl/Content/109482
IS - No 3
EP - 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
ER -
A1 - Hawranek, Jacek
A1 - Zygmunt, Jan
PB - Komitet Nauk Filozoficznych PAN
PB - Wydział Filozofii i Socjologii UW
JF - Przegląd Filozoficzny. Nowa Seria
SP - 163
T1 - Some comments on a question about semilattices with a unit
UR - http://www.czasopisma.pan.pl/dlibra/docmetadata?id=109482
DOI - 10.24425/pfns.2018.125459