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 a/index.mdwn
+++ b/index.mdwn
@@ 2,55 +2,18 @@
or: **What Philosophers and Linguists Can Learn From Theoretical Computer Science But Didn't Know To Ask**
This course will be cotaught by [Chris Barker](http://homepages.nyu.edu/~cb125/) and [Jim Pryor](http://www.jimpryor.net/). Linguistics calls it "G61.3340002" and Philosophy calls it "G83.2296001."

+This course is cotaught by [Chris Barker](http://homepages.nyu.edu/~cb125/) and [Jim Pryor](http://www.jimpryor.net/). Linguistics calls it "G61.3340002" and Philosophy calls it "G83.2296001."
+The seminar meets on Mondays from 46, in
+the Linguistics building at 10 Washington Place, in room 104 (back of the first floor).
+One student session will be held every Wednesday from 34 on the
+fourth floor at 10 Washington Place.
## Announcements ##
* The seminar meets on Mondays from 46, in
the Linguistics building at 10 Washington Place, in room 104 (back of the first floor).
+* This is the time of the semester when some people start slipping
+ behind with the homework. Don't.
* One student session will be held every Wednesday from 34. The other will
be arranged to fit the schedule of those who'd like to attend but can't
make the Wednesday time. (We first proposed Tuesdays from 1112, but this
time turns out not to be so helpful.) If you're one of the students who
wants to meet for Q&A at some other time in the week, let us know.

 You should see the student sessions as opportunities to clear up lingering
issues from material we've discussed, and help get a better footing for what
we'll be doing the next week. It would be smart to make a serious start on that
week's homework, for instance, before the session.

* Henceforth, unless we say otherwise, every homework will be "due" by
Sunday morning after the Monday seminar in which we refer to it.
(Usually we'll post the assignment shortly before the seminar, but don't
rely on this.) However, for every assignment there will be a "grace
period" of one further week for you to continue working on it if you
have trouble and aren't able to complete the assignment to your
satisfaction by the due date. You shouldn't hesitate to talk to usor
each other!about the assignments when you do have trouble. We don't
mind so much if you come across answers to the assignment when browsing
the web, or the Little Schemer book, or anywhere. So long as you can
reason yourself through the solutions and experience for yourself the
insights they embody.

 We reserve the privilege to ruthlessly require you to
explain your solutions in conversations at any point, in section or in
class.

 You should always *aim* to complete the assignments by the "due" date,
as this will fit best with the progress of the seminar.

 The assignments will tend to be quite challenging. Again, you should by
all means talk amongst yourselves, and to us, about strategies and
questions that come up when working through them.

 We will not always be able to predict accurately which problems are
easy and which are hard. If we misjudge, and choose a problem that is
too hard for you to complete to your own satisfaction, it is still
very much worthwhile (and very much appreciated) if you would explain
what is difficult, what you tried, why what you tried didn't work, and
what you think you need in order to solve the problem.
+[[Older Announcements]]
##[[Lambda Evaluator]]##
@@ 73,24 +36,46 @@ arithmetical and list operations, some relatively advanced.
(27 Sept) Lecture notes for [[Week3]]; [[Assignment3]];
an evaluator with the definitions used for homework 3
preloaded is available at [[assignment 3 evaluator]].
+preloaded is available at [[assignment 3 evaluator]].
> Topics: [[Evaluation Order]]; Recursion with Fixed Point Combinators
(4 Oct) Lecture notes for [[Week4]]; [[Assignment4]].
> Topics: More on Fixed Points; Sets; Aborting List Traversals; [[Implementing Trees]]
+> Topics: More on Fixed Points; Sets; Aborting List Traversals; [[Implementing Trees]]
+
+
+(18 Oct, 25 Oct) Lecture notes for [[Week5]] and [[Week6]]; [[Assignment5]].
+
+> Topics: Types, Polymorphism, Unit and Bottom
+
+(1 Nov) Lecture notes for [[Week7]]; [[Assignment6]].
+
+> Topics: Monads; [[Reader Monad for Variable Binding]]; [[Reader Monad for Intensionality]]
+
+(8 Nov) Lecture notes for [[Week8]].
+
+> Topics: Reader Monad for Jacobson's VariableFree Semantics
+
+(15 Nov) Lecture notes for [[Week9]]; [[Assignment7]]. Everyone auditing in the class is encouraged to do this assignment, or at least work through the substantial "hints".
+
+> Topics: Mutable Variables; Passing by Reference
+
+(22 Nov) Lecture notes for [[Week10]]
+
+> Topics: Calculator improvements, including mutation
+(30 Nov) Lecture notes for Week11
(18 Oct) Lecture notes for [[Week5]] (in progress).
+(6 Dec) Lecture notes for Week12
> Topics: Types, Polymorphism
+(13 Dec) Lecture notes for Week13
[[Upcoming topics]]
[Advanced Lambda Calculus Topics](/advanced_lambda)
+[[Advanced Topics]]
> Topics: Version 4 lists
+> Topics: Version 4 lists, Monads in Category Theory, Calculator Improvements
##Scheme and OCaml##