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Math Help - Discrete mathematics set theory problem!

  1. #1
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    Discrete mathematics set theory problem!

    I got a question that myself cant solve hope anyone here maybe could help!

    "Explain why the arbitrary amounts of M1, M2, M3, M4 must always apply to (M1 U M3) \ (M2 U M4) C (M1 \ M2) U (M3 \ M4) "

    // Winy
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  2. #2
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    Hi Winy,
    I'm not sure exactly about your problem, but it looks like something I'd try and draw a Venn diagram of first up? Could that help?
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  3. #3
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    Quote Originally Posted by Winy View Post
    "Explain why the arbitrary amounts of M1, M2, M3, M4 must always apply to (M1 U M3) \ (M2 U M4) C (M1 \ M2) U (M3 \ M4) "
    Notice that x \notin \left( {M_2  \cup M_4 } \right)\;\Rightarrow \quad x \notin {\rm M}_2  \wedge x \notin {\rm M}_4
    Also x \in M_1  \wedge x \notin M_2  \wedge x \notin M_4  \Rightarrow \quad x \in \left( {M_1 \backslash M_2 } \right)
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  4. #4
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    Thanks alot for your help and fast replays ! Hopefully i can figure it out now
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