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the complement of a regularly open set is regularly. a. open

b.closed c.bounded d.finite

Question

the complement of a regularly open set is regularly. a. open

b.closed c.bounded d.finite

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Mathematics
10 months
2021-07-19T04:22:34+00:00
2021-07-19T04:22:34+00:00 1 Answers
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## Answers ( )

Answer:Regular b-open sets (rb-open sets)

In this section we introduce a new class of open sets called rb-open sets. Definition 4.1: A set A ⊂ X is said to be regular b-open (briefly rb-open) if its complement is a regular b-closed set.