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Metric function of Subset Y

  1. Oct 2, 2012 #1
    Y ⊂ X where X is a metric space with the function d. Prove that (Y,d) is a metric space with the same function d.

    The metric function d: X x X -> R.

    I know that the function for Y is:

    d* : Y x Y -> R

    How do I show that d is the same as d*.
  2. jcsd
  3. Oct 2, 2012 #2


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    What is the definition of a metric?
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