Epictetus comments on Open Thread - Aug 24 - Aug 30 - Less Wrong

7 Post author: Elo 24 August 2015 08:14AM

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Comment author: Clarity 25 August 2015 11:40:54AM *  2 points [-]

I just tried this 'battleground god' thing and it told me:

'It is strange to say that God is a logical impossibility, but you don’t know whether God exists. If God is a logical impossibility, then surely She can’t exist, and so you know that She doesn’t exist.'

I don't get it. Why can't I be unsure about the truth value of something just because it's a logical impossibility? My understanding of logic isn't exhaustive.

Comment author: Epictetus 27 August 2015 02:04:28AM *  1 point [-]

Why can't I be unsure about the truth value of something just because it's a logical impossibility?

If you're using logic to determine truth values, then a logical impossibility is false. The reason is that if something is logically impossible, then its existence would create a contradiction and so violate the Law of Noncontradiction.

Comment author: Clarity 27 August 2015 07:01:19AM 0 points [-]

Your logic sounds consistent. Thanks, I'm happy to accept the utility of the law of non-contradiction and therefore don't believe in the logical impossibility of god anymore, not the logical impossibility of anything I conceive.