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He obtained his Ph.D. at the Hebrew University of Jerusalem University of Jerusa Azriel L em in 1958, under the supervision of Abraham Fraenkel and Abraham Robinson. Using Cohen's method of forcing, he proved several results on the consistency of various statements contradicting the axiom of choice. For example, with J. D. Halpern he proved that the Boolean prime ideal theorem does not imply the axiom of choice. He discovered the models L''x'' used in inner model theory. He also introduced the notions of Levy hierarchy of the formulas of set theory and Levy collapse. His notable students include Dov Gabbay, Moti Gitik, Menachem Magidor.
 Azriel L, Hebrew University of Jerusalem
Please list all entity pairs containing a certain relationship in the given options.Output format is "word1, word2; word3, word4". 
Option: place of death, place of birth, education degree, education institution 
Text: {0} 
Answer:
 Azriel L, Hebrew University of Jerusalem