diff --git a/class/Tasks/TruthTableTask.php b/class/Tasks/TruthTableTask.php
index 053cfcd..3b3b47a 100644
--- a/class/Tasks/TruthTableTask.php
+++ b/class/Tasks/TruthTableTask.php
@@ -59,6 +59,10 @@ class TruthTableTask extends PicturedTask
         return $this->lf->getExpression($fmt);
     }
 
+    public function getLogicFunctionDNF(): string {
+        return $this->lf->toDNF();
+    }
+
     public function toArray(string $mode = "all"): array
     {
         $a = parent::toArray($mode);