add ground/1.

2018-02-08 23:51:05 -07:00
parent df3e8b8fce
commit 9c1b48865b
11 changed files with 166 additions and 13 deletions
--- a/README.md
+++ b/README.md
@@ -94,6 +94,7 @@ The following predicates are built-in to rusty-wam.
 * `false/0`
 * `float/1`
 * `functor/3`
+* `ground/1`
 * `integer/1`
 * `length/2`
 * `maplist/1..8`