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set a collection of well defined objects
intersection what the sets have in common - where they overlap
union put the sets together
complement what is left in the universal set when you take away this set
universal set a rectangle that represents our restricted range of objects
set difference what is left in one set when you take away any object it shares with another set
element element an object in a set
null set a set with no elements - empty set
Venn diagram diagrams that represent sets
cardinal number the number of elements in a set
subset part of a set - every element of one set is also an element of some other set
Created by: lisabar