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Math Help - Preserving inclusions, and unions.

  1. #1
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    Preserving inclusions, and unions.

    Let f:A->B. Let A_0 \subsetA and B_0 \subsetB. Show that f preserves inclusion and unions only:

    question: f( A_0 \cup A_1) =f( A_0) \cupf( A_1).

    I'm not very good with the latex code and I just want to mention that I'm not sure why some things besides the 0 and the 1 look like subscripts. hopefully its not too confusing.
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  2. #2
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    Yes this is true f\left( {A_0  \cup A_1 } \right) = f\left( {A_0 } \right) \cup f\left( {A_0 } \right)

    Here is the laTeX code [tex]f\left( {A_0 \cup A_1 } \right) = f\left( {A_0 } \right) \cup f\left( {A_0 } \right)[/tex]
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