Talk:Product metric

Latest comment: 9 years ago by Erel Segal in topic Unclear opening phrase

Unclear opening phrase

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The opening phrase seems to me unclear, as if some words are missing or redundant. In particular:

  • In the first sentence, why do you need the emphasize phrase: "the Cartesian product of two metric spaces in the category of metric spaces"? The sentence can be easily understood without it.
  • In the second sentence there are two verbs: "another family of choices of metric on the product space is the p product metric, described below, of the Cartesian product of n metric spaces is the p norm of the n-vector of the norms of the n subspaces". It seems like two sentences glued together hastingly.
  • "Note that this differs, in general;" - differs from what? A verb complement is missing.

--Erel Segal (talk) 07:12, 9 January 2015 (UTC)Reply