The book Mathematical Foundation of Computer Science has been written in a simple, lucid and easy to understandable style. Each chapter has been planed as independent unit so that various topics connected which can also be read separately. Hints and answers are give for the problems in the exercise to keep the students for self learning. Salient Features Simple and concise presentation of fundamentals has been given in each chapter.Each topic is presented in a systematic and simple manner.Easy to understand methodology. More than 450 problems are solved with step by step. /* Style Definitions */ table.MsoNormalTable {mso-style-nameTable Normal; mso-tstyle-rowband-size0; mso-tstyle-colband-size0; mso-style-noshowyes; mso-style-priority99; mso-style-qformatyes; mso-style-parent; mso-padding-alt0mm 5.4pt 0mm 5.4pt; mso-para-margin0mm; mso-para-margin-bottom.0001pt; mso-paginationwidow-orphan; font-size10.0pt; font-familyTimes New Roman,serif;}