This text book designed as selfcontained, comperhensive study meterial for the Third Edition semister B.E.Classes(CSE & ISE Branches) of VTU (Revised Syllabus). The topics included are : Set Theory, Mathematical Logic, Relations, Functions,Groups,Coding Theroy and Rings. Key Features * Each topic is treated in systematic, logical and lucide manner. * concepts are introduced in a seqential way with detailed explanations and illustrations. * There are over 600 fully workedout examples and 800 graded exercises (with answer) aimed at preparing the student for examination as well as higher studies.