Logician, mathematician, and philosopher who also became well-known for his focus on model theory and mathematics. He went to the University or college of Warsaw and was an associate from the Lwów-Warsaw college of logic as well as the Warsaw college of mathematics and viewpoint. He found america in 1939. He was the youngest person ever to total a doctorate at Warsaw. He carried out his mathematics study in the University or college of California, Berkeley, from 1942 until he exceeded in 1983. He wedded Maria Witkowski. He previously a profound impact on Karl Popper.