In <Pine.NEB.firstname.lastname@example.org>, on 12/11/2012 at 08:13 PM, William Elliot <email@example.com> said:
>Why the extra luggage of the embedding for the definition of >compactification? Why isn't the definition simply > Y is a compactification of X when there's some > embedding h:X -> Y for which h(X) is a dense subset of Y?
Because in general there is more than one such imbedding.
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