I still don't see why a liar could not answer if the condition was not met; would that make the answer less of a lie?
Because a liar wouldn't be a liar if he spoke the truth. Given the condition isn't met, his answer could be either true or false. No matter what he'd answer, there's a chance he'd tell the truth. But since he can NEVER tell the truth, he just can't answer it.
"You can't consider no answer as an answer"
It is an answer, though. In this case the question was specifically designed to ensure that.
It is designed for us to draw a conclusion if the person who's supposed to answer it, can't answer the question. Maybe it's just a matter of perspective: from the person's point of view, he can't answer it. If he did answer, he could contradict his own characteristic of being a liar/truthteller, so giving an answer is not an option. So he doesn't give an answer.
From our point of view, we could consider his inability to give an answer, as an answer though. We learn from it, and if you consider any kind of feedback as an "answer", then yes, it's an answer. But I don't see a "no answer" as an answer.
Suppose I'm only allowed to ask you a yes/no question. You have to lie. I ask you "Am I showing two fingers?" and I hide them behind my back, so you can't see them.
You can't answer it because you may only answer with yes or no, and either way, you could be telling the truth.
Do you consider your inability to answer as an answer as well? I think the fact that in this case I don't learn anything from your inability to answer, is irrelevant. At least, from your point of view (the liar), it is irrelevant.
"The second part of the question, is entirely connected to the first part."
No it isn't. A and B can be the same or different, completely independent of whether A tells the truth or not.
But the answer is different (if asked seperately), how can the question be the same?
"The reasons why I posted that paradox:"
That is an interesting paradox, but you don't need a paradox to ask a question that can not be answered with a yes or no. ...
Yes, or no; have you stopped beating your spouse/mate/partner yet?
<img src="/ubbthreads/images/graemlins/tongue.gif" alt="" />
I know I didn't
have to, but I wanted to. So I did. <img src="/ubbthreads/images/graemlins/biggrin.gif" alt="" />
even if just teasing you about being wrong.
<img src="/ubbthreads/images/graemlins/silly.gif" alt="" />
I don't feel teased yet <img src="/ubbthreads/images/graemlins/tongue.gif" alt="" /> Or wrong <img src="/ubbthreads/images/graemlins/biggrin.gif" alt="" /> But do keep trying! <img src="/ubbthreads/images/graemlins/cool.gif" alt="" />
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