Mordchaj Vajsberg

Mordchaj Wajsberg or Mordechaj Wajsberg (born May 10, 1902 in Łomża ; † in World War II ) was a Polish mathematician and logician who is assigned to the Lviv-Warsaw School .

Life and career

Until 1923 Wajsberg graduated - albeit with interruptions due to service in the Polish army during the First World War - the school in Lomza. He then studied philosophy at the University of Warsaw under the supervision of Jan Łukasiewicz , Stanisław Leśniewski and Tadeusz Kotarbiński . In 1931 - after another year of service in the army - he received his doctorate and then worked as a high school teacher in Kovel ( Volhynia ).

Details of the death of Mordchaj Wajsberg are unknown.

From 1926 Wajsberg delivered his own scientific work . He mainly worked on mathematical logic . From 1927 he was in correspondence with the American logician and philosopher Clarence Irving Lewis . He was the first to deal with questions of axiomatization in polyvalent logic . His dissertation , entitled An Axiom System of the Trivalent Propositional Calculus , can also be assigned to this area . In dealing with the systematic investigations of Lewis, he researched in particular the problem of the semantic characterization of modal-logical systems and further on the question of the relationship between the Lewis systems and the classical propositional calculus . In his later scientific work he developed a special method for proving the completeness of the propositional calculus with implication alone.

personal data
SURNAME	Wajsberg, Mordchaj
ALTERNATIVE NAMES	Wajsberg, Mordechaj
BRIEF DESCRIPTION	Polish mathematician and logician
DATE OF BIRTH	May 10, 1902
PLACE OF BIRTH	Łomża
DATE OF DEATH	between 1939 and 1945