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text_A: WALL-E won a Nebula Award for Best Script.
text_B: Albert Abramovich Muchnik -LRB- born 1934 -RRB- is a Russian mathematician who worked in the field of foundations and mathematical logic .. Russian. Russian people. mathematician. mathematician. mathematical logic. mathematical logic. He received his Ph.D from Moscow State Pedagogical Institute in 1959 under the advisorship of Pyotr Novikov .. Moscow State Pedagogical Institute. Moscow State Pedagogical Institute. Pyotr Novikov. Pyotr Novikov. Muchnik 's most significant contribution was on the subject of relative computability .. relative computability. relative computability. He and Richard Friedberg , independently introduced the priority method which gave an affirmative answer to Post 's Problem regarding the existence of re Turing degrees between 0 and 0 ' .. Richard Friedberg. Richard Friedberg. recursively enumerable. Turing degrees. Turing degrees. This groundbreaking result , now known as the Friedberg-Muchnik Theorem , opened a wide study of the Turing degrees of the recursively enumerable sets which turned out to possess a very complicated and non-trivial structure .. Turing degrees. Turing degrees. Friedberg-Muchnik Theorem. Friedberg-Muchnik Theorem. He also has a significant contribution in the subject of mass problems where he introduced the generalisation of Turing degrees , called `` Muchnik degrees '' in his work On Strong and Weak Reducibilities of Algorithmic Problems published in 1963 .. Turing degrees. Turing degrees. mass problems. mass problems. Muchnik also elaborated Kolmogorov 's proposal of viewing intuitionism as `` calculus of problems '' and proved that the lattice of Muchnik degrees is Brouwerian .. Kolmogorov. Kolmogorov. intuitionism. intuitionism. Brouwerian. Intuitionism. Muchnik is married to the Russian mathematician Nadezhda Ermolaeva , and their son Andrej , who died in 2007 , was also a mathematician working in foundations of mathematics .. Russian. Russian people. mathematician. mathematician
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