Undergraduate Algebra

CHAPTERI TheIntegers1 §1.TerminologyofSets1 §2.BasicProperties2 §3.GreatestCommonDivisor5 §4.UniqueFactorization7 §5.EquivalenceRelationsandCongruences12 CHAPTERII Groups16 §1.GroupsandExamples16 §2.Mappings26 §3.Homomorphisms33 §4.CosetsandNormalSubgr