books.google.com - This invaluable book is a collection of 31 important both inideas and results papers published by mathematical logicians inthe 20th Century. The papers have been selected by Professor Gerald ESacks. Some of the authors are GAdel, Kleene, Tarski, A Robinson, Kreisel, Cohen, Morley, Shelah, Hrushovski...https://books.google.com/books/about/Mathematical_Logic_in_the_20th_Century.html?id=9UHU_bq-wc8C&utm_source=gb-gplus-shareMathematical Logic in the 20th Century

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## Mathematical Logic in the 20th CenturyBy Gerald E. Sacks |