Preface

Preface

بواسطة - Mohamed HOUASNI
عدد الردود: 0

Students often seek clear and concise resources to effectively grasp the mathematical concepts covered in their curriculum. To meet this need, we have prepared this handout, which offers carefully structured lessons and fully solved exercises aligned with the program set by the Ministry of Higher Education and Scientific Research. This document is a comprehensive course handout for Algebra 1, designed to align with the national curriculum. It is structured into five core chapters, beginning with a foundational review of Logic and Methods of Reasoning. This first chapter establishes the formal rules of propositional logic, logical connectors, quantifiers, and essential proof techniques like direct proof, contraposition, contradiction, and mathematical induction. The second chapter, Sets and Applications (Maps), covers fundamental set theory, including operations (union, intersection, complement) and their properties. It then defines the concept of a map, exploring images, pre-images, and classifying maps as injective, surjective, or bijective. Chapter 3, Binary Relations, analyzes relations characterized by reflexivity, symmetry, and transitivity (equivalence relations, which yield partitions and quotients) and those characterized by reflexivity, antisymmetry, and transitivity (order relations). Thefourth chapter, Algebraic Structures, provides a systematic development of fundamental algebraic systems. It begins with internal composition laws, their properties (associativity, commutativity, distributivity), and the study of special elements (identity, invertible, regular elements). This foundation leads to the formal definition of groups, including subgroups, cosets, Lagrange’s Theorem, and group homomorphisms. The chapter further extends to rings and f ields, covering subrings, ideals, ring homomorphisms, and the classification of fields including f inite fields Fp. Chapter 5 introduces the Ring of Polynomials, constructing R[X] over commutative rings and examining polynomial arithmetic: divisibility, Euclidean division, GCD computation, and factorization into irreducibles. The chapter concludes with the theory of polynomial roots including multiplicity and the Fundamental Theorem of Algebra. Each chapter is supplemented with comprehensive solved exercises that reinforce the theoretical concepts through practical application and problem-solving techniques.