01096nam a2200313 i 450099100080843970753620020507173841.0960523s1979 de ||| | eng 3540097104b1076009x-39ule_instLE01302639ExLDip.to Matematicaeng511.3AMS 03D30Epstein, Richard L.46609Degrees of unsolvability :structure and theory /Richard L. EpsteinBerlin :Springer-Verlag,1979xiv, 240 p. :ill. ;24 cm.Lecture notes in mathematics,0075-8434 ;759Includes bibliographical references and indexDegree theoryLatticesUnsolvability.b1076009x23-02-1728-06-02991000808439707536LE013 03D EPS11 (1979)12013000048680le013-E0.00-l- 00000.i1085521x28-06-02Degrees of unsolvability81037UNISALENTOle01301-01-96ma -engde 01