X-Git-Url: http://lambda.jimpryor.net/git/gitweb.cgi?p=lambda.git;a=blobdiff_plain;f=week1.mdwn;h=6773a7714f358bdbc6da564719b018a5000ee271;hp=f09f393d653bc0f8cdc0dbc677a6bbfd04b4e775;hb=e47611204f506bac2a53a81dd9a0e6e85600575e;hpb=5739a5066020a0e9dd46e0299165faadb59fc438 diff --git a/week1.mdwn b/week1.mdwn index f09f393d..6773a771 100644 --- a/week1.mdwn +++ b/week1.mdwn @@ -57,7 +57,7 @@ We'll tend to write (λa M) as just `(\a M)`, so we don't hav 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. +Some authors reserve the term "term" for just variables and abstracts. We'll probably just say "term" and "expression" indiscriminately for expressions of any of these three forms. Examples of expressions: @@ -603,6 +603,7 @@ Here's how it looks to say the same thing in various of these languages. It's easy to be lulled into thinking this is a kind of imperative construction. *But it's not!* It's really just a shorthand for the compound "let"-expressions we've already been looking at, taking the maximum syntactically permissible scope. (Compare the "dot" convention in the lambda calculus, discussed above.) + Some more comparisons between Scheme and OCaml ----------------------------------------------