logo

Logic Seminar

Organizers: Laurențiu Leuștean, Denisa Diaconescu, Andrei Sipoș


The logic seminar features talks on
mathematical logic,
philosophical logic and
logical aspects of computer science.
All seminars, except where otherwise indicated,
will be at 10:00 in Hall 202,
Faculty of Mathematics and Computer Science,
University of Bucharest.
To be added
to the mailing list,
please subscribe to

our group
logo
Past Seminars

    Our logo and our posters are designed by Claudia Chiriță.


Talks in 2018-2019


Thursday, December 6, 2018

Roberto Giuntini (University of Cagliari)
Classical and quantum degrees of truth: a new look at the effects of a Hilbert space


Abstract: We investigate certain Brouwer-Zadeh lattices that serve as abstract counterparts of lattices of effects in Hilbert spaces under the spectral ordering. These algebras, called $PBZ^*$-lattices, can also be seen as generalisations of orthomodular lattices and are remarkable for the collapse of three notions of “sharpness” that are distinct in general Brouwer-Zadeh lattices. We investigate the structure theory of $PBZ^*$-lattices and their reducts; in particular, we prove some embedding results for $PBZ^*$-lattices and provide an initial description of the lattice of $PBZ^*$-varieties.


    Past Seminars