X-Git-Url: http://lambda.jimpryor.net/git/gitweb.cgi?p=lambda.git;a=blobdiff_plain;f=week1.mdwn;h=27a79796fe92b77ea02ec76a7ada37625962f641;hp=316cfa44fd9c7e5ac231ece21514d5837636c6d1;hb=f38560c70588aa58d7db41afb7904c2bd4638287;hpb=be4f2e949a6cb783561a2bbdbd3ba4d66dadec3f diff --git a/week1.mdwn b/week1.mdwn index 316cfa44..27a79796 100644 --- a/week1.mdwn +++ b/week1.mdwn @@ -114,19 +114,19 @@ The lambda calculus we'll be focusing on for the first part of the course has no Here is its syntax:
- **Variables**: `x`, `y`, `z`, ... +Variables: x, y, z...
Each variable is an expression. For any expressions M and N and variable a, the following are also expressions:
- **Abstract**: (λa M) +Abstract: (λa M)
We'll tend to write (λa M) as just `( \a M )`.
- **Application**: `(M N)` +Application: (M N)
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.