From 3a08849b14cc00a2a279acd120f3835414ea1a82 Mon Sep 17 00:00:00 2001 From: Jim Pryor Date: Wed, 15 Sep 2010 21:12:37 -0400 Subject: [PATCH] week1: tweaks Signed-off-by: Jim Pryor --- week1.mdwn | 13 ++++++++++--- 1 file changed, 10 insertions(+), 3 deletions(-) diff --git a/week1.mdwn b/week1.mdwn index 329333cb..897ef1f8 100644 --- a/week1.mdwn +++ b/week1.mdwn @@ -59,11 +59,18 @@ We'll tend to write `(λa M)` as just `(\a M)`, so we don't hav Some authors reserve the term "term" for just variables and abstracts. We won't participate in that convention; we'll probably just say "term" and "expression" indiscriminately for expressions of any of these three forms. -Samples of expressions:  +Examples of expressions: -> foo + x + (y x) + (x x) + (\x y) + (\x x) + (\x (\y x)) + (x (\x x)) + ((\x (x x)) (\x (x x))) -The *lambda* calculus has an associated proof theory. For now, we can regard the proof theory as having just one rule, called the rule of **beta-reduction** or "beta-contraction". Suppose you have some expression of the form: +The lambda calculus has an associated proof theory. For now, we can regard the proof theory as having just one rule, called the rule of **beta-reduction** or "beta-contraction". Suppose you have some expression of the form: ((\a M) N) -- 2.11.0