Math 3.1
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ReadingsCheck31.docDiscrete Mathematics
Readings Check section 3.1
Read Section 3.1, pages 123 ( 134, and answer the questions below:.
[Note: you do not need to read examples 3.9, 3.10, or 3.11]
Type in the answers below each question and email the completed document to me, or print out the document and fill it out by hand and email a scan or photo of it to me.
1) Does the universal set U contain everything in the our universe? What does it (or can it) contain?
2) What is the cardinality of a set? What notation is used for cardinality?
3) What is the difference between saying that A ( B, and saying that A ( B ? Be precise in your answer.
4) If C ( D and D ( C, what else can we say about the relationship between C and D?
5) If A ( B and B ( C, what is the relationship between A and C?
6) Is it true or false that ( = {(} ? [see definition 3.3]
7) In example 3.7 the notation
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from chapter 1 reappears. In the context of set theory, what does÷
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calculate?8) What does the notation P(A) (the power set of A) represent?
9) Referring to example 3.14, If
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, then what are the values of n and k?After submitting this form, go on to watch the videos, read the notes, and start the homework assignment for section 3.1. Ask me any questions that you want to ask. When the homework assignment is done, and you feel that you have a solid understanding of the homework and the section, then take the quiz for section 3.1.
