use m > 0 and n > 0 as ack if default

1 files changed, 1 insertions, 2 deletions

diff --git a/ack.kpl b/ack.kpl
index f27af3e..bbd9784 100644
--- a/ack.kpl
+++ b/ack.kpl
@@ -12,8 +12,7 @@
     ? {
         m = 0 { n + 1 }
         &(m > 0; n = 0) { ack `sync (m - 1; 1) }
-        &(m > 0; n > 0) { ack `sync (m - 1; ack `sync (m; n - 1)) }
-        { 0 }
+        { ack `sync (m - 1; ack `sync (m; n - 1)) }
     }
 )