X-Git-Url: http://lambda.jimpryor.net/git/gitweb.cgi?a=blobdiff_plain;ds=sidebyside;f=week1.mdwn;h=67dce382b4e6536cc1cdf318bd606e7c68ceb18c;hb=180b5fcb23d05c1f7ea98d02517dc3d697ce111d;hp=f09f393d653bc0f8cdc0dbc677a6bbfd04b4e775;hpb=5739a5066020a0e9dd46e0299165faadb59fc438;p=lambda.git diff --git a/week1.mdwn b/week1.mdwn index f09f393d..67dce382 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: @@ -603,7 +603,6 @@ 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.) - 9. Some shorthand OCaml permits you to abbreviate: @@ -674,12 +673,15 @@ Here's how it looks to say the same thing in various of these languages. and there's no more mutation going on there than there is in: + Some more comparisons between Scheme and OCaml ----------------------------------------------