About the first course in Mathematical Logic

In the version of this paper published in Annuaire de l'Université de Sofia, the following sentence occurs instead of the one with the link to the present note: “The first course of Mathematical Logic in Sofia University was given by Professor B. Petkanchin during the academic year 1959/1960”. The truth of this statement is not established. Maybe Petkanchin actually delivered a lecture course in mathematical logic in the above-mentioned academic year, but possibly not in Sofia University, and hardly a detailed one.
Last modified on May 17, 2010.