Proper noun
Tarski (plural Tarskis)
A surname from Polish.
According to Anita Feferman, Tarski "changed the face of logic in the twentieth century". Source: Internet
Alfred Tarski published much pioneering work in the field, which is named after a series of papers he published under the title Contributions to the theory of models. Source: Internet
After becoming the youngest person ever to complete a doctorate at Warsaw University, Tarski taught logic at the Polish Pedagogical Institute, mathematics and logic at the University, and served as Łukasiewicz's assistant. Source: Internet
As to why Tarski, a professed atheist, converted, that just came with the territory and was part of the package: if you were going to be Polish then you had to say you were Catholic." Source: Internet
Anita Burdman Feferman, Solomon Feferman, Alfred Tarski: Life and Logic (2004), page 39. Tarski was a Polish nationalist who saw himself as a Pole and wished to be fully accepted as such later, in America, he spoke Polish at home. Source: Internet
As a result, Tarski held that the semantic theory could not be applied to any natural language, such as English, because they contain their own truth predicates. Source: Internet