Discrete Mathematics: Math 245, Spring 2011
Schedule



I will try to keep to this schedule but will update it as needed.

Induction proofs for divisibility and order.
Day Topics Preparation
Th. 1/20 Introduction. Statements, negation, conjunction, disjunction.
Logical equivalences
Sec. 1.1
Tu. 1/25 Logical equivalences, tautologies, contradictions.
Conditionals and biconditionals.
Secs. 1.1-2
Th. 1/27 Conditionals and English usage.
Logical arguments.
Secs. 1.2-3
Tu. 2/1 Logic circuits and logic puzzles.
Sets
Secs. 1.4, 5.1
Th. 2/3 Sets, complement, intersection, union.
Predicates
Secs. 5.1, 2.1-2
Tu. 2/8 Predicates and English.Truth set of a predicate.
Quantified predicates.
Secs. 2.1-3
Th. 2/10 Multiply quantified predicates.
Arguments with quantified predicates.
Secs. 2.3 (2nd Ed) 2.4 (3rd Ed.)
Tu. 2/15 Sets: Cartesian products, power set, partitions.
Proofs: element-wise proofs,
algebraic proofs.
Secs. 5.1-3
Th. 2/17 More proofs of set theorems.
Mathematics: Axiom, Definition, Theorem, Proof
Axioms for the integers.
Secs. 5.2-3 3.1
Tu. 2/22 Fundamental properties of the integers.
Order, divisibility.
Secs. 3.1, 3.3, 3.4
Th. 2/24 EXAM Ch. 1, 2, 5
Tu. 3/1 The quotient-remainder theorem.
The Euclidean algorithm.
Secs. 3.1, 3.3, 3.5
Th. 3/3 Representation of integers in binary, octal etc. Secs. 1.4, 4.1 (just one page)
Tu. 3/8 Primes and Unique Factorization. Infinitude of primes. Sec. 3.5-7
Th. 3/10 Rational numbers and real numbers.
The floor and ceiling functions.
Secs. 3.5-7
Tu. 3/15 Sequences, summation and product notation.
The well ordering principle.
The principle of induction.
Proof by induction.
Sec. 4.1-2, 4.4
Th. 3/17 Recursively defined functions. Sec. 4.2-3, 8.1
Tu. 3/22 Sec. 4.2-3, 8.1
Th. 3/24 Strong induction. Sec. 4.4, 8.1-2
Tu. 4/5 Questions before the exam?
Functions
Sec. 7.1-2.
Th. 4/7 EXAM. Secs. 3.1-7, 4.1-4; 8.1-2.
Tu. 4/12 Relations
Functions: one-to-one, onto.
Sec. 10.1 (except last two pages)
Sec. 7.1-2.
Th. 4/14 Functions: composition. Sec. 7.4
Tu. 4/19 Relations on a set: reflexive, symmetric, transitive
Partitions and equivalence relations.
Sec. 10.1 (last two pages), 10.2
Th. 4/21 Examples of equivalence relations.
Partially ordered sets.
Sec 10.3
Tu. 4/26 Counting: addition, multiplication rules,
inclusion-exclusion.
Sec 6.2,3
Th. 4/28 Four ways to count. Sec 6.4.
Tu. 5/3 From counting to probability and gambling. Sec. 6.1,4
Th. 5/5 EXAM. Secs 7.1,2,4 (1,3,5 in 2nd Ed.)
Secs 10.1,2,3,5.
Tu. 5/10 Binomial theorem.
Pascal's triangle.
Questions?
Sec. 6.6, 6.7
Tu. 5/17 (8:00-10:00) FINAL EXAM. Cumulative.