Added missing > node.

src/main/java/de/monticore/lang/monticar/mpp/montimath/MathPrettyPrinter.java

@@ -290,6 +290,13 @@ public class MathPrettyPrinter implements AstPrettyPrinter<ASTMathCompilationUni
         this.printSpace();
     }
 
+    @Override
+    public void visit(ASTGreaterThanExpression node) {
+        this.printSpace();
+        this.printer.print(node.getOperator());
+        this.printSpace();
+    }
+
     @Override
     public void visit(ASTMathElseIfExpression node) {
         this.printElseIf();

src/main/java/de/monticore/lang/monticar/mpp/montimath/MathStructuredVisitor.java

@@ -325,6 +325,21 @@ public interface MathStructuredVisitor extends MathVisitor {
 
     default void revisit(ASTGreaterEqualExpression node) {}
 
+    @Override
+    default void traverse(ASTGreaterThanExpression node) {
+        if (null != node.getLeftExpression()) {
+            node.getLeftExpression().accept(this.getRealThis());
+            this.getRealThis().revisit(node);
+        }
+
+        if (null != node.getRightExpression()) {
+            node.getRightExpression().accept(this.getRealThis());
+        }
+
+    }
+
+    default void revisit(ASTGreaterThanExpression node) {}
+
     @Override
     default void traverse(ASTBooleanOrOpExpression node) {
         if (null != node.getLeftExpression()) {