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# set - Welcome to Discrete Mathematical Structures 1 About...

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04/01/10 1 Welcome to: Discrete Mathematical Structures

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04/01/10 2 About myself: http://moon.nju.edu.cn/~txp 025-83593694

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04/01/10 4 Discrete Mathematic Course description µ F s = L- · ¸ “ 9
04/01/10 5 Discrete Mathematic Course description F s = F s = 9 &

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04/01/10 6 Discrete Mathematic 4 4 4 ±A f ² ³ 9 & & ´ -C ¶ “ 9 && ¤ “
04/01/10 7 Lecture 1 Sets and Operations on Sets

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04/01/10 8 Concept of Set No exact definition a variety of different objects as being bound together by some common property, the property may be nothing more than the ability to think of these objects (as being) together Description by Cantor N A set is a collection into a whole of definite, distinct objects of our intuition or our thought. The objects are called elements (member) of the set.
04/01/10 9 Representation of Set Enumerating: {2, 3, 5} Order, Repeat mathematically definite property: {x | P (x)}, P must be a mathematically definite property There may be more than one representation for one set: {2, 3, 5} All prime numbers in [1, 7) All real roots of the equation x 3 -10x 2 +31x-30=0 N

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set - Welcome to Discrete Mathematical Structures 1 About...

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