# CMSC 250 Slides and Recordings. Dates for the future are guesswork

**COMBINATORICS AND PROBABILITY**

# Jan 25: Game Trees SLIDES REC

# Jan 26: Admin, Intro to Discrete Math SLIDES REC

# Jan 26: Permutations and Combinations SLIDES

# Jan 27: Game Trees REC

# Jan 28 Binomial, Trinomial, and Knomial Thm Knomials SLIDES

# Jan 28 (Part of it) The Law of Inclusion and Exclusion SLIDES

# Jan 28 Recording REC

# Feb 1 Mods, Floors, Ceilings SLIDES

# Feb 1 Making Change SLIDES REC

# Feb 2 The Pigeonhole Principle SLIDES

# Feb 2 Recording which has both Law of Inc-Excl and Pigeonhole REC

# Feb 3 Recording of Wed Feb 3 Rec REC

# Feb 8 Combinatorics SLIDES

# Feb 8 Dynamic Programming SLIDES REC REC

# Feb 9 Second Lecture on Muffins REC

# Feb 10 Hw Review REC REC

# Feb 15 (also Feb 8) Grid Coloring SLIDES

# Feb 15 Grid Coloring REC REC

# Feb 16 Hat Check Problem Slides SLIDES

# Feb 16 Prob and Hat Check Problem Recording. REC

# Feb 17 HW review REC REC

# Feb 17 Stars and Bars - number of solutions SLIDES

# 3Blue1Brown on Bayes ThmVideo

# 3B1B on Medical Test Paradox and B's Thm Video

# Feb 24 Loaded Dice and Review SLIDES REC REC

**LOGIC**

# Mar 1 Logic Problems Review SLIDES REC

# Mar 2 Sets and Quantifiers SLIDES REC

# Mar 3 Logic Problems Review, Same slides as Mar 1 REC

# Mar 4 Math With Quantifiers SLIDES REC

# Mar 9 Midterm One Review SLIDES REC

**PROOF TECHNIQUES**

# DID NOT DO IN CLASS, BUT HERE FOR YOUR REF Modular Arithmetic SLIDES

# Mar 22 Proof Techniques (Number Theory) SLIDES REC

# Mar 22 Proofs in General/Partitions SLIDES SLIDES REC

# Mar 23 Proof Techniques (Number Theory) SLIDES REC

# Mar 25 Sums, Products, Sequences SLIDES REC

# Apr 12 Crypto REC

# Apr 14 Crypto REC

# There exists Transendental Numbers SLIDES

# Cardinals and Orderings SLIDES

# e is irrational SLIDES

# The Egg Problem SLIDES

# The Hat Problem SLIDES

**MISC**

# Cardinals and Orderings SLIDES