add is_list

2018-03-09 19:27:22 -07:00
parent b5b44fe5a2
commit 2cc5367c52
2 changed files with 6 additions and 1 deletions
--- a/README.md
+++ b/README.md
@@ -138,6 +138,7 @@ The following predicates are built-in to rusty-wam.
 * `functor/3`
 * `ground/1`
 * `integer/1`
+* `is_list/1`
 * `length/2`
 * `maplist/1..8`
 * `member/2`