CS 227 unit -*- Outline -*-

	lecture 1-4
* let-letrec
	see also the file let-letrec-defs.txt, used as a handout.
	see also the files let-lambda-semantics.txt and examples.txt
	The file let-lambda-semantics.txt was used as a handout in Fall 1993.
	The examples were posted to the newsgroup.

	lecture 4-6
* polys

	lecture 4
* binary
	(in sections Fall 1993, because most students know this)