Usually means: Closed set containing no isolated points.
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We found 5 dictionaries that define the word perfect set:

General (2 matching dictionaries)
  1. perfect set: Wiktionary
  2. Perfect set: Wikipedia, the Free Encyclopedia

Computing (1 matching dictionary)
  1. perfect set: Encyclopedia

Science (2 matching dictionaries)
  1. Perfect Set: Eric Weisstein's World of Mathematics
  2. perfect set: PlanetMath Encyclopedia

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Definitions from Wiktionary (perfect set)

▸ noun:  (mathematical analysis) A set which is equal to its set of limit points. That is, a set A is perfect if A'=A.

Similar:
ideal, continuous function, level set, ordered set, pseudoideal, closure, ring, IP set, algebra, maximum, more...

Opposite:
imperfect set, incomplete set, flawed set

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Similar:
ideal, continuous function, level set, ordered set, pseudoideal, closure, ring, IP set, algebra, maximum, more...

Opposite:
imperfect set, incomplete set, flawed set



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