# Definition talk:Borel Sigma-Algebra

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Worth adding a separate definition for a Borel $\sigma$-algebra generated by open sets in a metric space? It's immediate if the reader is familiar with topology, but the question is whether there are readers that know about open sets in a metric space setting but hasn't learned general topology yet. --GFauxPas (talk) 14:10, 31 May 2018 (EDT)

- Good call. Fill your boots. --prime mover (talk) 15:35, 31 May 2018 (EDT)