For the Society in which Clubs are closed under arbitrary union and finite intersection and a Tribe is the complement of a Club: which of the following statements is necessarily true?
Tap an option to check your answer.
For the Society in which Clubs are closed under arbitrary union and finite intersection and a Tribe is the complement of a Club: which of the following statements is necessarily true?
Tap an option to check your answer.
Checking your account…
Real analysis has come up 38 times in 5 exams since 2005.
This question is on Topology of the real line: open, closed and compact sets, part of Real analysis in Mathematics.
Which sets are open, closed or compact and how unions and intersections behave.
TestStop has 29 past-paper questions on this subtopic.
Question from the DSE 2005 paper. Solutions are TestStop's own. Not affiliated with or endorsed by any examination authority.