040 TOÁN RỜI RẠC Hướng dẫn bài tập Quan hệ có tính phản xạ, đối xứng, phản đối xứng, bắc cầu ducdvgt

Relations between elements in sets occur in many contexts. Every day we deal with relations such as: between a person and his mobile phone number, an employee and his salary, …. In mathematics relations such as: between a positive integer and another positive integer that it divides evenly, an integer and another integer that is congruent to 5, a real number and another number greater than it, a real number 𝑥 and the value 𝑓(𝑥) where 𝑓 is a function, …. In computer science relations such as: a program and a variable that it uses as a parameter, a programming language and a valid statement in the program. A binary relation is a relation between two sets If "Let A and B be sets, a binary relation R from A to B is a subset of the Cartesian product AxB." A relation on a set is a relation from set A to itself The video explains the concepts as well as the representations and operations for binary relations. Properties that relations on a set can have such as: reflexive, symmetric, antisymmetric, transitive as well as the definition of the power of a relation on a set RELATED VIDEOS: Lesson 1: Propositional logic    • TOÁN RỜI RẠC Bài 1 Logic mệnh đề   Lesson 2: Predicate logic    • TOÁN RỜI RẠC Bài 2 Logic Vị từ   Lesson 3: Rules of inference    • TOÁN RỜI RẠC Bài 3 Các quy tắc suy luận   ...   Lesson 4: Methods of proof    • TOÁN RỜI RẠC Bài 4 Các phương pháp chứng minh   Lesson 5: Set base structure    • TOÁN RỜI RẠC Bài 5 Cấu trúc cơ sở tập ducd...   Lesson 6: Function base structure    • TOÁN RỜI RẠC Bài 6 Cấu trúc cơ sở Hàm ducd...   Lesson 7: Methods count    • TOÁN RỜI RẠC Bài 7 Phương pháp đếm ducdvgtvt   Lesson 8: Recurrence system    • TOÁN RỜI RẠC Bài 8 Hệ thức truy hồi ducdvgtvt   Lesson 9: Binary relations and relations on a set    • TOÁN RỜI RẠC Bài 9 Quan hệ 2 ngôi và quan ...   #discrete_math#Relation#Binary_relations #ducdvgtvt#DH_GTVT#function#relation_on_a_set#composition #reflexion#symmetry#anti-symmetry#bridging#power_of_relations ducdvgtvt,Do_Van_Duc,DH_GTVT,discrete_math, relation, binary relations, relations on a set, operations on relations, composition of relations, reflection, symmetry, anti-symmetry, bridging, power of relations,