# Aspects of provability and interpretability

## Rineke Verbrugge, University of Groningen

In 1994, Rineke Verbrugge did a postdoc in Gothenburg, as a scientific guest of Professor Per Lindström, who was writing his landmark book Aspects of Incompleteness at the time. Even though the two of them did not co-author any papers that year, there was still significant mutual influence and there were very lively discussions in the weekly seminars of the logic group. In this research lecture, Rineke Verbrugge will present some of the questions and results around bounded arithmetic, provability and interpretability logic that she was working on that year, for example, a small reflection principle for bounded arithmetic and the lattice of feasible interpretability types.