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Is the universe a tautology? (Explanation inside)

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Wulf Gotta trope, dood! from Louisiana Since: Jan, 2001
Gotta trope, dood!
#76: Jul 5th 2011 at 5:49:15 PM

Can that other person know if his knowledge reflects actual reality or not?

Yes, when it comes to things like facts and figures. If asked about his interpretation of events, his own subjective bias comes into play, but for something having to do with blueprints or numbers or anything testable, you can find out if your knowledge reflects reality using that knowledge in reality. You can look at a jet check and see if there are stationary bicycles powering it, or if it uses a jet engine. You could ask something like "How do you know if this is reality or if we're all just brains in jars" but that's irrelevant, because in this "reality", jets work with jet engines.

As for truth and falsehood- Truth is whatever is reflected by reality, falsehood is that which is not. No matter how sound the logic is, if it's not reflected by reality, it's not actually true.

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Yej See ALL the stars! from <0,1i> Since: Mar, 2010
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#77: Jul 6th 2011 at 7:48:48 AM

@Tzetze, no, they're just using a different X.

Da Rules excuse all the inaccuracy in the world. Listen to them, not me.
Tzetze DUMB from a converted church in Venice, Italy Since: Jan, 2001
DUMB
#78: Jul 6th 2011 at 8:56:18 AM

But the sets of provable propositions are different.

[1] This facsimile operated in part by synAC.
Yej See ALL the stars! from <0,1i> Since: Mar, 2010
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#79: Jul 6th 2011 at 9:11:23 AM

Yes, but they depend on the assumptions made, not on a given person's opinion.

Da Rules excuse all the inaccuracy in the world. Listen to them, not me.
Tzetze DUMB from a converted church in Venice, Italy Since: Jan, 2001
Yej See ALL the stars! from <0,1i> Since: Mar, 2010
See ALL the stars!
#81: Jul 6th 2011 at 12:06:38 PM

Only when you're comparing things to the real world. Otherwise, assumptions are true by definition.

edited 6th Jul '11 12:06:56 PM by Yej

Da Rules excuse all the inaccuracy in the world. Listen to them, not me.
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