This book is intended for students who aspire to carry out a substantial, methodical, and comprehensive review of both the theory and the exercises covered during the year.

The structure of the book is similar to that of the National Examinations as established in recent years. For this reason:

In Section A, the following are included:

• definitions with answers
• the statements of theorems with their respective proofs
• true-false questions
• fill-in-the-blank questions

In Section B: Most exercises requiring basic knowledge with slight extensions are included.

In Section C: Exercises are presented that require a deeper understanding of the concepts in order to be solved.

In Section D: The exercises have a combinatorial nature and aim to highlight and clarify the "subtle" and simultaneously difficult points of the material.

Assessment Criteria: Formulated according to the spirit of the National Examinations for a methodical, responsible, and comprehensive review with the goal of the final assessment of the knowledge acquired.

In the last section of the book, the answers to all the topics are provided.

Hoping that this effort will achieve its goal, we present this work for the strict assessment of the students as well as of fellow educators.