Rule Number x: Every rule has an exception.
Now thinking about this rule, stating: that every rule has an exception. Let’s apply this rule to itself. It means that this rule has an exception and there is at least one rule y that has no exception.
– x and y are not the same rule. Then rule x is wrong because we have found a rule that has no exception.
– x and y are the same, so basically what x is saying:
Rule x: Every rule has an exception, including this one. Its exception is that it has no exception.
This is a strange loop.