- Notes from 11/11/02

- think about sharing as you do state changing operations
- two lists w/ same cdr - is it the same thing, or does it just look the same?
- if it is shared, set-car and set-cdr could change both

- predicates
	- essentially, eq? checks storage for sameness
	- equal? checks contents recursively
	- #t from eq? should imply #t from equal?

- use state to:
	- capture changes to information (bank balance)
	- change representation for efficiency
		- will be doing this in a later project step