Seminar on Applied Mathematical Logic

Welcome to the webpages of the seminar of the LogICS group. The seminar usually takes place on Wednesdays 4pm in the lecture room 318 of the Institute of Computer Science (Pod Vodárenskou věží 2, Prague 8. See the map). The seminar hosts talks on recent work in mathematical logic and applications by members of the Prague logic community and guests. Talks are often streamed via Zoom.

To join the seminar mailing list, contact the seminar organisers, Zuzana Haniková and Igor Sedlár. For more information on ICS seminars, take a look at the seminar section of the ICS webpages.

The seminar is supported by the Czech Society for Cybernetics and Informatics The seminar archive can be found here.

For students: The seminar can be attended as an optional course (e.g. as course ALG500011 at the Faculty of Arts of Charles University). For more information about this, including grading details, contact the seminar organisers, Zuzana Haniková and Igor Sedlár.

Upcoming Talks

  • 21.05.2025
    Adam Přenosil (University of Barcelona): Which po-monoids arise from po-groups?

    Mundici's representation of MV-algebras as intervals in Abelian lattice-ordered groups was a landmark result in a number of ways. Besides its key role in the theory of MV-algebras, it sparked the search for further representations of ordered algebras arising in non-classical logic by means of partially ordered groups (po-groups), with the aim of leveraging the extensively studied theory of po-groups to understand these wider (and wilder) classes of algebras. Two notable results in this direction are the representation due to Galatos & Tsinakis of GMV-algebras as so-called nuclear images of certain submonoids of lattice-ordered groups, and the representation due to Dvurečenskij & Vetterlein of so-called pseudo-effect algebras as intervals in po-groups. In this talk, we show that in the project of representing ordered monoidal structures in terms of pogroups, the class of so-called integrally closed po-monoids plays a central role. On the one hand, they are precisely the algebras representable as nuclear images of submonoids of po-groups. This vastly extends the previous representation results in this direction, showing in particular that every integral po-monoid arises from a po-group. On the other hand, they also form the basic building blocks of a different construction, which decomposes a (sufficiently well-behaved) po-monoid into a family of subalgebras associated with its positive idempotent elements.

  • Recent Talks