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Sections
Relations and Functions
Pick a section. You read the idea first, then answer questions on it.
1. Which pairs are related
1 idea
Read
2. Reflexive, symmetric, transitive
2 ideas
Read
3. Equivalence relations and equivalence classes
2 ideas
Read
4. Two properties do not buy the third
1 idea
Read
5. One-one, onto, both
2 ideas
Read
6. Composing functions
2 ideas
Read
7. Invertible functions
3 ideas
Read
8. Binary operations
2 ideas
Read
9. Sameness, and reversibility
1 idea
Read
10. Practice set
5 ideas
Read