PROFESSOR JOANNA GRYGIEL HAS PASSED AWAY

It is with deep sorrow that we announce the passing, on 11 August 2026, of Professor Joanna Grygiel - a mathematician and philosopher, and a long-standing member of staff at the Higher School of Education in Czestochowa, later Jan Dlugosz University in Czestochowa. She was associated with the University from 1985 to 2021.

For many years, she worked at the Institute of Mathematics and subsequently at the Institute of Mathematics and Computer Science within the Faculty of Mathematics and Natural Sciences. In 1993, she was awarded a PhD in Mathematical Sciences by the University of Silesia, based on her doctoral dissertation entitled Independent Sets of Generators of Filters in Boolean Algebras. In 2005, she obtained a post-doctoral degree (DSc) in Humanities in the field of philosophy, specialising in logic, from the University of Wroclaw, based on her habilitation thesis The Concept of Gluing Lattices.

Joanna Grygiel’s research interests focused primarily on the foundations of mathematics, logic and universal algebra, with particular emphasis on lattice theory.

During her many years at the University, she held a number of positions, including Deputy Director of the Institute of Mathematics for Teaching Affairs and Head of the Department of Algebra and Mathematical Logic. From 2016, she headed the Department of Logic, Methodology and Epistemology at the Institute of Philosophy.

Professor Grygiel was the author of three books and 36 scientific articles, as well as editor of seven collective volumes. She organised 24 editions of the international conference Applications of Algebra in Logic and Computer Science. She participated in scientific conferences, mainly international, more than 130 times, including as an invited speaker and session chair.

From 2021, she was a Professor at SWPS University in Warsaw, at the Faculty of Design, within the Department of Computer Science. There, she headed the Department of Mathematics and Logic.

The funeral ceremony will take place on 19 August 2026 at 12.00 noon at the Podgórki Tynieckie Municipal Cemetery in Krakow.

The University community extends its deepest condolences to the family.