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windsylph

If A is a subset of C and B is also a subset of C, then is A union B a subset of C also (subset, not a proper subset)? Intuitively, I'd say no, but I could be wrong..?

  • one year ago
  • one year ago

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  1. windsylph
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    Wait, I think I'm starting to think otherwise. But okay, I'll wait for your reply.

    • one year ago
  2. windsylph
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    Haha I think I got it. But okay, I'll still wait for your reply just to confirm.

    • one year ago
  3. soati
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    |dw:1340779359345:dw| As you see, A and B are subsets of C. Their union is the "shaded area". |dw:1340779385082:dw| So yes, their union is still a subset of C! All points belong within it.

    • one year ago
  4. soati
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    That took forever to upload, sorry, ahaha :)

    • one year ago
  5. windsylph
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    That's alright. Thank you very much :D

    • one year ago
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