1.
What do relations and mappings have in common?
Reading Questions 1.3 Reading Questions
2.
What makes relations and mappings different?
3.
State carefully the three defining properties of an equivalence relation. In other words, do not just name the properties, give their definitions.
4.
What is the big deal about equivalence relations? (Hint: Partitions.)
5.
Describe a general technique for proving that two sets are equal.
