diff --git a/src/main/java/de/neemann/digital/analyse/parser/Parser.java b/src/main/java/de/neemann/digital/analyse/parser/Parser.java
index 4a18ffdd4..0c2097236 100644
--- a/src/main/java/de/neemann/digital/analyse/parser/Parser.java
+++ b/src/main/java/de/neemann/digital/analyse/parser/Parser.java
@@ -40,6 +40,8 @@ public class Parser {
         tokenizer.wordChars('_', '_');
         tokenizer.wordChars('^', '^');
         tokenizer.wordChars('0', '9');
+//        tokenizer.ordinaryChar('∧'); StreamTokenizer can not handle ordinary chars > 255
+//        tokenizer.ordinaryChar('∨');
     }
 
     private boolean isNext(String str) throws IOException {
@@ -76,7 +78,7 @@ public class Parser {
 
     private Expression parseOr() throws IOException, ParseException {
         Expression ex = parseAnd();
-        while (isNext('+') || isNext("∨")) {
+        while (isNext('+') || isNext("∨") || isNext('|')) {
             ex = Operation.or(ex, parseAnd());
         }
         return ex;
@@ -84,7 +86,7 @@ public class Parser {
 
     private Expression parseAnd() throws IOException, ParseException {
         Expression ex = parseSimpleExp();
-        while (isNext('*') || isNext("∧")) {
+        while (isNext('*') || isNext("∧") || isNext('&')) {
             ex = Operation.and(ex, parseSimpleExp());
         }
         return ex;
diff --git a/src/test/java/de/neemann/digital/analyse/parser/ParserTest.java b/src/test/java/de/neemann/digital/analyse/parser/ParserTest.java
index e74b6c1d4..651b2ea31 100644
--- a/src/test/java/de/neemann/digital/analyse/parser/ParserTest.java
+++ b/src/test/java/de/neemann/digital/analyse/parser/ParserTest.java
@@ -21,15 +21,15 @@ public class ParserTest extends TestCase {
     }
 
     public void testParseOr() throws Exception {
-        Parser p = new Parser("a+b");
-        Expression exp = p.parse();
-        assertTrue(exp instanceof Operation.Or);
+        assertTrue(new Parser("a+b").parse() instanceof Operation.Or);
+        assertTrue(new Parser("a ∨ b").parse() instanceof Operation.Or);
+        assertTrue(new Parser("a|b").parse() instanceof Operation.Or);
     }
 
     public void testParseAnd() throws Exception {
-        Parser p = new Parser("a*b");
-        Expression exp = p.parse();
-        assertTrue(exp instanceof Operation.And);
+        assertTrue(new Parser("a*b").parse() instanceof Operation.And);
+        assertTrue(new Parser("a ∧ b").parse() instanceof Operation.And);
+        assertTrue(new Parser("a&b").parse() instanceof Operation.And);
     }
 
     public void testParseParenthesis() throws Exception {