X-Git-Url: http://lambda.jimpryor.net/git/gitweb.cgi?p=lambda.git;a=blobdiff_plain;f=assignment8.mdwn;h=fe9a87c4f6031021e3bd7415af5e5bbe69e5f910;hp=abc14d08b87337bbaa56a1d025157714a0c6949a;hb=3835a47e6337cdfa87b2b2c0691665b44ab72b61;hpb=dfd299634e576bfe075da7863a91327ec6c3d31f 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