Ewa Orłowska

Stella Ewa Orłowska (born 1935) is a Polish logician. Her research centers on the concept that everything in logic and set theory can be expressed in terms of relations, and has used this idea to publish works on deduction systems and model theory for non-classical logic, and logics of non-deterministic and incomplete information. She is a professor at the in Warsaw, and the former president of the Polish Association for Logic and Philosophy of Science. Provided by Wikipedia