Claim: Jan Kratochvíl, born on February 10, 1959, studied at Charles University in Prague (the oldest and largest university in the Czech Republic), and became a professor there.
Evidence: Jan Kratochvíl (born 10 February 1959) is a Czech mathematician and computer scientist whose research concerns graph theory and intersection graphs. He studied at Charles University in Prague, earning a master's degree in 1983 and a Ph.D. in 1987; his dissertation, supervised by Jaroslav Nešetřil, combined graph theory with coding theory. Charles University, known also as Charles University in Prague (Czech: Univerzita Karlova (UK); Latin: Universitas Carolina; German: Karls-Universität) or historically as the University of Prague (Latin: Universitas Pragensis), is the oldest and largest university in the Czech Republic. He remained at Charles University as a faculty member, earned his habilitation in 1995, and was promoted to full professor in 2003.