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Osito wrote:Your trying to make logic equivalent to an axiom is irrational. I don't need to provide experimentation or measurement to establish these types of truths. You can't say that "past time is infinite" can be qualified like light. It is either true, or it isn't. There is no "past time is finite and infinite at the same time in the same aspect." Absolutes exist. Objective truth exists.
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Keith C wrote:Osito wrote:Your trying to make logic equivalent to an axiom is irrational. I don't need to provide experimentation or measurement to establish these types of truths. You can't say that "past time is infinite" can be qualified like light. It is either true, or it isn't. There is no "past time is finite and infinite at the same time in the same aspect." Absolutes exist. Objective truth exists.
You are assuming that your rules of logic apply to all aspects of the real world.
One part of this is that all definitions satisfy the 'excluded middle' condition.
The nature of light is one, which is both particle and wave. I think you have no way of proving that there isn't some similar problem with time:- perhaps there are quantum particles of time or perhaps something equally unexpected occurs near the big bang.
Saying that god would not have created such a universe is not very helpful if you are then going to use your logic to prove the existence of a lawful god.
Osito wrote:1. You have the analogy incorrect. The only thing that we are determining about past time is whether it is infinite or finite. What thing about the infinitude do you think was not excluded? Remember that infinity does not have the characteristics of a number: there can't be partial infinitude,............
I didn't say all definitions satisfy the "excluded middle" condition. I said I could create a hypothesis that satisfied the Principle of the Excluded Middle.
Osito wrote:2. I have no need to say anything about God. This is simply a matter of logic working in any rational universe.
Osito wrote:3. And this is MOST IMPORTANT! You are assuming something irrational. You are assuming that something unexpected can happen in a closed system like logic. You have swallowed the propaganda that there are no absolutes. Rules of logic do apply to all aspects of the real world. We live in a rational universe. There are laws.
Keith C wrote:Your hypothesis, in your ideal logical system, may be correct, but does this also apply in the real world?
Remember that Cantor proved that there were different infinities.
What about the possibility that time, instead of being a straight line, is fractal when examined very closely?
Some of your fellow presuppositionists claim that it is only the supervision of the universe by god which keeps the universe rational and predictable. Doesn't thin make your argument circular? Or is the universe rational without god?
Wrong. Logic is logic, and nothing illogical occurs within that closed axiomatic system. What I am saying is that you have no such assurance about the real world - particularly if god created it with some measure of irrationality.
Osito wrote:Yes, in a rational universe, using premises that are determined to be true in a real world, the conclusion would be true in the real world. But Cantor didn't prove that infinity exists in an algorithmically finite structure. (Anyway, the Cantor argument is meaningless. It creates no useful new information. What is the application of a "bigger" infinity? And finally, it still represents a concept only.) First, that would not make it infinite, and second, what if the moon were made of green cheese? So what? Unsupported speculation is useless and irrational. ....................
Osito wrote:What would be the difference? The origin would still have to be supernatural, because the universe is rational, no matter what you call that supernatural beginning agent. NO CIRCULAR ARGUMENT NEEDED! You go straight from existing premises to a conclusion. Even so, your question is illogical: "God made and supervises the universe to be rational in nature. The universe is rational in nature." The foregoing isn't even an argument. And since my proof doesn't require God making the universe or the conclusion that there is a God, what are you getting at?
Your argument requires the universe to be logical for your proof to work.
Do you really mean that if there is something illogical or irrational about the universe, your procedure would prove that god does not exist?Osito wrote: If all premises in that "closed system" are true in the "real world," then the conclusion is true in the "real world." There is no such thing as partial irrationality in the real world. Either something exists according to the laws of the universe, making it rational, or it does not, making it supernatural.
Keith C wrote:Part of your 'proof' seems to depend on time being finite... (H)ow many discrete 'points' are present on this line? ...Cantor's 'second diagonal' shows that the number of points on the real number time-line (sic) between 0 and 1 second is greater than any ordinary (countable) infinity like the infinity of all integers.
Can you be certain real physical singularity in the universe near t = 0 does not in some way stretch out this super-infinity of points in some strange 'relativistic' fashion?
...the circularity of your argument remains... Do you really mean that if there is something illogical or irrational about the universe, your procedure would prove that god does not exist?
That is a really large 'IF' in your first sentence.
Osito wrote:1. There are an infinite number of points on a line, because points have no dimension. The question is this: "How many discrete units of time are there?" A finite number. At any finite distance from the origin of time, there are a finite number of increments, as the shortest unit of time is the Planck unit.
2. Cantor's Diagonal Argument (DA) is a party trick. It doesn't belong in this discussion, because even if it were true, it only describes a bigger infinity. I'll demonstrate the fallacy of this proposition, which happens to be a variation on Zeno's Paradox (doesn't exist in the real world either):
Keith C wrote:The Planck time is not the shortest unit of time, even though I am sure you can find some web sites repeating your misinformation. It is simply the time for a photon to travel the Planck length.
Cantor's proof shows that the number of real numbers on a number line between 0 and 1 is a different order of infinity than the infinite number of integers. The infinity is larger, the points are smaller, and there definitely is not a finite number of such points.
There is nothing wrong with Cantor's proof. Further, we have no reason to believe that time can be represented by a real number line and hence Cantor's proof can be applied to time, even though we have no means of actually making measurements with this precision.
The remainder of your post is irrelevant because it seems to be based on your faulty logic.
Osito wrote:All right, have it your way. Change from Planck unit to the smallest discrete unit of time. It doesn't matter. But there can't be a "infinitely small" unit of time, for the same reason that Zeno's Paradox is a fallacy. Having one terminus (NOW) and another (approaching the beginning) makes past time finite. There is simply no way your argument is going anywhere, even expressed in the materialistic, mathematical and illogical manner you are going.
Keith C wrote:...not proved that is true in the real world at times very close to the big bang.
Keith C wrote:Zeno's paradox is a fallacy if time is linear on the smallest scales. ...not proved that is true in the real world at times very close to the big bang.
I am not advocating this cosmology, but think of two different time lines as in Humphreys' speculation.
http://www.answersingenesis.org/home/area/magazines/tj/docs/v17n2_cosmology.pdf
Take one to be our conventional linear time, T.
For the second, time slows down dramatically for T very close to T = 0.
As one possible case, let T2 = ln(T), so that T2 = 0 at T = 1 second and T2 goes to minus infinity as T ==> 0.
T2 is now infinitely long as T goes from 0 to 1 second.
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