diff --git a/list/list.go b/list/list.go
index a4afd33..df18071 100644
--- a/list/list.go
+++ b/list/list.go
@@ -69,10 +69,6 @@ func (this *EmptyList) First() any {
 	return nil
 }
 
-func IsEmpty(this IList) bool {
-	return this == nil || this.IsEmpty()
-}
-
 func (this *List) IsEmpty() bool {
 	return false
 }
@@ -86,7 +82,7 @@ func (this *List) String() string {
 	sb.WriteRune('(')
 	// Iterate and print elements
 	var e IList
-	for e = this; !IsEmpty(e); e = e.Rest() {
+	for e = this; !e.IsEmpty(); e = e.Rest() {
 		sb.WriteString(fmt.Sprint(e.First()))
 		sb.WriteRune(' ')
 	}