Covers operations and equivalence relations in number theory, including addition, subtraction, multiplication, division, and properties of neutral and inverse elements.
Explores the properties of relations in computer science, including equivalence relations and the partition of a set.
Provides a recap of group theory, defining a group as a set with a multiplication operation.
Covers the concept of natural numbers, including properties like commutativity and associativity.
Covers the addition of fractions and properties of rational numbers, emphasizing associativity and summing fractions with the same denominator.
Covers integers, rings, subrings, invertibility, divisors of zero, and equivalence relations in formal fractions.
