diff options
Diffstat (limited to 'src/algebra/list.spad.pamphlet')
| -rw-r--r-- | src/algebra/list.spad.pamphlet | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/src/algebra/list.spad.pamphlet b/src/algebra/list.spad.pamphlet index eb4ab4d3..cc945bf8 100644 --- a/src/algebra/list.spad.pamphlet +++ b/src/algebra/list.spad.pamphlet @@ -234,8 +234,8 @@ List(S:Type): Exports == Implementation where LISTMININDEX ==> 1 -- this is the minimum list index Exports ==> ListAggregate S with - nil : () -> % - ++ nil() returns the empty list. + nil : % + ++ \spad{nil} is the empty list. null : % -> Boolean ++ null(u) tests if list \spad{u} is the ++ empty list. @@ -264,7 +264,7 @@ List(S:Type): Exports == Implementation where Implementation ==> IndexedList(S, LISTMININDEX) add - nil() == NIL$Lisp + nil == NIL$Lisp null l == NULL(l)$Lisp cons(s, l) == CONS(s, l)$Lisp append(l:%, t:%) == APPEND(l, t)$Lisp |