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Abstract

These days school children are taught about sets. A second grader* was asked to name “the set of girls in his class.” This can be done by a complete list such as:

“Nancy, Florence, Sally, Judy, Ann, Barbara,…”

A problem arises when there are duplicates. To distinguish between two Barbaras one must indicate their family names or call them B1 and B2. The same member cannot be counted twice in a set.

Keywords

Verbal Definition Rotten Apple Target Board Dirty Trick Elementary Probability Theory 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer-Verlag New York Inc. 1979

Authors and Affiliations

  • Kai Lai Chung
    • 1
  1. 1.Department of MathematicsStanford UniversityStanfordUSA

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