Class

Revision as of 23:29, 10 June 2008 by Asymptosis (talk | contribs) (New page: In set theory, a class refers to a set made up of other sets. For example, if <math>A=\{a,b,c\}</math> is a set, then <math>\mathscr{A}=\{\{a\},\{b\},\{b,c\}\}</math> is a class ma...)
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In set theory, a class refers to a set made up of other sets. For example, if $A=\{a,b,c\}$ is a set, then $\mathscr{A}=\{\{a\},\{b\},\{b,c\}\}$ (Error compiling LaTeX. ! Undefined control sequence.) is a class made up of some of the subsets of $A$.

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