MATH 1P97 Lecture Notes - Lecture 1: Real Number, None Of The Above

• School: Brock University
• Department: Mathematics and Statistics
• Course: MATH 1P97
• Professor: Anton Knigavko

Document Summary

I"ll need a bit of time to get used to the tech here. You"ll need a bit of time to get used to me. The main number system we"ll need to use is the real numbers, written r. R is a set (alongside a bunch of operations between its elements, like +, , and ). Recall: a mathematical set is just a collection of stu (elements). A set s either contains something or doesn"t contain something. Whenever sets are being discussed, we use curly brackets (cid:8), (cid:9). First, we can just list what"s in a set: We can also just describe what"s in the set with words: A = (cid:8)whole numbers between 0 and 5(cid:9) We can further over-write as a test on potential elements: A = (cid:8)x(cid:12)(cid:12)x is a whole number , x is less than 5 , x is more than zero (cid:9) which translates to.