The limit points of a set , denoted .
Derived Set
See also
Dense, Limit Point, Perfect SetExplore with Wolfram|Alpha
References
Ferreirós, J. "Cantor's Derived Sets" and "Derived Sets and Cardinalities." §4.4.3 and 6.6 in Labyrinth of Thought: A History of Set Theory and Its Role in Modern Mathematics. Basel, Switzerland: Birkhäuser, pp. 141-144 and 202-208, 1999.Referenced on Wolfram|Alpha
Derived SetCite this as:
Weisstein, Eric W. "Derived Set." From MathWorld--A Wolfram Web Resource. https://mathworld.wolfram.com/DerivedSet.html