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I don't understand this weight fact at all

  1. Oct 7, 2013 #1
    http://en.wikipedia.org/wiki/Topological_basis#Weight_and_character

    The 4th bullet says that if B is a basis for a top. space T, there is a basis B' that has a cardinality less than the weight of the space, but right before, the weight was defined to be the minimum cardinality of a basis.. :confused:
     
  2. jcsd
  3. Oct 7, 2013 #2

    Office_Shredder

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    Well, it says less than or equal, so technically it's still a correct statement, but I agree it should say |B'| = w(X) as far as I can tell.
     
  4. Oct 7, 2013 #3
    Oh OK! Thank you! I thought I was just in over my head.
     
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