CIS 1910 Lecture Notes - Lecture 1: Empty Set, If And Only If, Elementis

• School: University of Guelph
• Department: Computing and Information Science
• Course: CIS 1910
• Professor: Pascal Matsakis

Document Summary

Thou shalt tell the truth, the whole truth and nothing but the truth. I am a billionaire if i were a billionaire then i would go to the moon every day. It is false that 7*3+1 = 22 15. Thou shalt designate all things with appropriate symbols. Thou shalt be courteous and introduce each variable before using it. A variable is a symbol representing some arbitrary, not fully specified, or unknown thing. There exists an integer n such that n is odd. Consider an integer n: if 7n+1 = 15 then n = 2 consider an integer n: 7n+1 = 15 n = 2. For any integer n, we have: 2n is even. For all integers n, we have: n+1 is even. An n-tuple, or tuple of length n, is a collection of n objects where order and multiplicity have significance. The objects in a tuple are the terms of the tuple.