12:32

(Abstract Algebra 1) Integers Modulo n

13:12

2.2.1 Congruence mod n: Video

11:05

(Abstract Algebra 1) Equivalence Classes

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(Abstract Algebra 1) Groups of Permutations

5:14

Congruence Classes

18:51

System of congruences, modular arithmetic

8:21

(Abstract Algebra 1) Definition of an Equivalence Relation

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What does a ≡ b (mod n) mean? Basic Modular Arithmetic, Congruence