Fix parser

src/Parser/PP.hs

@@ -103,6 +103,7 @@ parseOp = (reservedOp "<" *> return Lt) <|>
           (reservedOp "=" *> return Eq) <|>
           (reservedOp "!=" *> return Ne) <|>
           (reservedOp ">" *> return Gt) <|>
+          (reservedOp ">=" *> return Ge) <|>
           (reservedOp "=%" *> (ModEq <$> integer)) <|>
           (reservedOp "!=%" *> (ModNe <$> integer))