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Thread: Is X a subset of X * Y

  1. September 30th 2008, 08:00 AM #1
    szpengchao
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    Is X a subset of X * Y

    Is X a subset of
    <br /> X \times Y ?<br /> <br />
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  2. October 1st 2008, 05:53 PM #2
    ThePerfectHacker
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    Quote Originally Posted by szpengchao View Post
    Is X a subset of
    <br /> X \times Y ?<br /> <br />
    Let X=Y= \{0\}.
    What does that tell you?
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