Covers integers, rings, subrings, invertibility, divisors of zero, and equivalence relations in formal fractions.
Covers operations and equivalence relations in number theory, including addition, subtraction, multiplication, division, and properties of neutral and inverse elements.
Covers the addition of fractions and properties of rational numbers, emphasizing associativity and summing fractions with the same denominator.
Covers integers, rationals, logic, proof techniques, functions, and relations using examples and truth tables.
Covers basic properties of natural numbers, including order relations and inverses.
Covers the properties of division in integers and the relationship between divisibility and unique quotients.
Covers the basics of group theory, including definitions, examples, and isometries.
Covers addition properties and operations in the set of integers Z.
Explores the concept of fractions of rings and their uniqueness in ideals and quotients.
