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Handout
Wolfram Research

Wolfram Math World: Sets

For Students 9th - 10th Standards
This page discusses sets and set theory in mathematics and probability, and it discusses the notation and properties of sets.
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Activity
Other

Jeff Miller: Uses of Symbols of Set Theory and Logic

For Students 9th - 10th
This fun personal page offers the history of various symbols in set notation. (The bibliography link is located at the bottom of the page.)