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Chapter 3: Set Theory and Logic · 02.02.2018 · Set Theory and Logic. 2 set a collection of ......

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1 Chapter 3: Set Theory and Logic
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Page 1: Chapter 3: Set Theory and Logic · 02.02.2018 · Set Theory and Logic. 2 set a collection of ... Notes,Whiteboard,Whiteboard Page,Notebook software,Notebook,PDF,SMART,SMART Technologies

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Chapter 3: Set Theory and Logic

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set ­ a collection of distinguishable objects.  Example: set of whole numbers is {0, 1, 2, 3...}

element ­ an object in a set.Example:  2 is an element in the above set of whole numbers.

universal set (sample space)  ­ a set of all elements under consideration.Example:   the universal set of digits is D = {0, 1, 2, 3, 4, 5, 6, 7, 8, 9}

subset ­ a set whose elements belong to another set.Example: the odd digits is a subset of all digits O = {1, 3, 5, 7, 9}Notation: 

Complement ­ all elements of a universal set that do not belong to a subset.Example: complement of O = O' = {0, 2, 4, 6, 8}Notation: 

3.1Types of Sets and Set Notation

Pages 146 ­ 158

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empty set ­  a set with no element.Example: the set of odd numbers divisible by 2.Notation:

disjoint ­ two or more sets having no elements in common.Example: the set of even numbers and the set of odd numbers are disjoint.

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Page 146

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T = {                                      }

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