====== Week 3 ====== ~~NOTOC~~ ==== Tuesday ==== * Coaching schedule is posted, see the sidebar. * Homework(s) * Conditional, biconditional statements again: if α then β with α == false and β == false --> if α then β == true * More on power sets * exercise 1.4.2 (3) (Let's write the truth table and create a Venn diagram together) * Some scheme/DrRacket constructs that will help for our... * Lab this evening \\ \\ **Lectures** * {{ :courses:cs145-201951:05.pptx | Today's Lecture}} * [[https://www.youtube.com/watch?v=fZsWrusH41I|Possibly the best commercial from Sunday]] **Homework** * Part 1,From Makinson, p24 exercise 1.4 part b. Due one week from today, Feb.12. * True or False: the power set of (A AND B) = the power set of A and the power set of B... provide proof or counter example. * Part 2. More to come. ==== Thursday ==== * {{ :courses:cs145-201951:06-relations.pptx | Today's lecture: Relations}} * Homework, Part 2. Both parts are due on Tuesday, February 12. Part 1 should be hand written and handed in before class. Part 2 can be emailed to me before the end of the day. * {{ :courses:cs145-201951:asmt-helper.scm | The helper file}} * {{ :courses:cs145-201951:powerset-template.rkt |The Template File}}