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Question: discrete math 1 a what is the complement of the...

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discrete math:

1. (a) What is the complement of the set [4,5] if the universal set [0,6]

(b) What is the complement of the set{4,5}if the universal set{0,1,2,3,4,5,6}

2. Write (1,3)∩(2,4) as a single interval and prove that your answer is correct. That means that you need to prove equality of two sets.

3.: disprove:

a) (2,3)⊆(2.001,3)

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