From: Jim Pryor Date: Sat, 27 Nov 2010 04:46:33 +0000 (-0500) Subject: assign8 tweaks X-Git-Url: http://lambda.jimpryor.net/git/gitweb.cgi?p=lambda.git;a=commitdiff_plain;h=3835a47e6337cdfa87b2b2c0691665b44ab72b61 assign8 tweaks Signed-off-by: Jim Pryor --- diff --git a/assignment8.mdwn b/assignment8.mdwn index abc14d08..fe9a87c4 100644 --- a/assignment8.mdwn +++ b/assignment8.mdwn @@ -87,7 +87,7 @@ * `(list)` and `'()` both evaluate to the empty list * `(null? lst)` tests whether `lst` is the empty list * non-empty lists are implemented as pairs whose second member is a list - * `'() '(1) '(1 2) '(1 2 3) are all lists + * `'()` `'(1)` `'(1 2)` `'(1 2 3)` are all lists * `(list)` `(list1)` `(list 1 2)` `(list 1 2 3)` are the same lists * `'(1 2 3)` and `(cons 1 '(2 3))` are pairs that are also lists (the same list) * `(pair? lst)` tests whether `lst` is a pair; if `lst` is a non-empty list, it will also pass this test; if `lst` fails this test, it may be because `lst` is the empty list, or because it's not a list or pair at all