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10 0 Quotient symbolic polynomial ring ( 2016-04-27 14:34:12 +0200 )
2 0 Quotient symbolic polynomial ring ( 2016-04-27 11:22:36 +0200 )
Copyright Sage, 2010. Some rights reserved under creative commons license. Content on this site is licensed under a Creative Commons Attribution Share Alike 3.0 license.