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Actual infinities.
#31
RE: Actual infinities.
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#32
RE: Actual infinities.
It is said that an argument is what convinces reasonable men and a proof is what it takes to convince even an unreasonable man.  - Alexander Vilenkin
If I am shown my error, I will be the first to throw my books into the fire.  - Martin Luther
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#33
RE: Actual infinities.
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#34
RE: Actual infinities.
It is said that an argument is what convinces reasonable men and a proof is what it takes to convince even an unreasonable man.  - Alexander Vilenkin
If I am shown my error, I will be the first to throw my books into the fire.  - Martin Luther
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#35
RE: Actual infinities.
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#36
RE: Actual infinities.
It is said that an argument is what convinces reasonable men and a proof is what it takes to convince even an unreasonable man.  - Alexander Vilenkin
If I am shown my error, I will be the first to throw my books into the fire.  - Martin Luther
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#37
RE: Actual infinities.
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#38
RE: Actual infinities.
(October 17, 2017 at 2:03 pm)Jehanne Wrote:
(October 17, 2017 at 1:52 pm)RoadRunner79 Wrote: What I am asking, is not to define what infinity is, nor to prove it as an abstract theory.  But when you are talking about two points, attributing infinity between those two points, what are you describing here?  Infinity of what?

It cannot be related to distance or a physical thing with dimensions, this would lead to a contradiction.  I don't think you can define what is infinite, without making in then finite.  You can potentially make smaller and smaller fractions, but each one will represent a finite amount, and will never get you an infinite result.

The set of Natural Numbers is an (countably) infinite set, an actual infinite of numbers, even if we cannot "count" them.  So, too, are the set of numbers between any 2 numbers of the real number line, which would be an uncountable infinite set.  I realize that no one can "count" those numbers, just as no one can enumerate the number of past events, if, in fact, the Cosmos is without a beginning.  I am just claiming that "actual infinities" of physical things may exist, just as they do in transfinite arithmetic.  If space is infinitely divisible, and, time, too, then those are actual infinities of things; if not, then they are finite.  You (and, Craig) seem to be conflating the act of enumerating a set with the intrinsic membership of that set!  Again, what is the cardinality of the set of "future praises" in Heaven?!  Don't say that it is a "potential infinite"; I am not asking you to count it!  I am asking you what its cardinality is?!  Now, if you are going to insist on sets on being "potentially infinite", then please define what the cardinality of a "potentially infinite set" is!  And, then, answer the question as to if some potentially infinite sets are bigger than others.

So you have a set of numbers that do not represent anything?  Then they are just numbers, that do not correspond to the two points in any way.

And what you are describing is a potential infinite, because per your wikipedia page
Quote:This is contrasted with potential infinity, in which a non-terminating process (such as "add 1 to the previous number") produces an unending "infinite" sequence of results, but each individual result is finite and is achieved in a finite number of steps.

Do you agree, that even if you can potentially divide something infinity, that your results each time are a finite number?
It is said that an argument is what convinces reasonable men and a proof is what it takes to convince even an unreasonable man.  - Alexander Vilenkin
If I am shown my error, I will be the first to throw my books into the fire.  - Martin Luther
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#39
RE: Actual infinities.
(October 17, 2017 at 2:20 pm)RoadRunner79 Wrote:
(October 17, 2017 at 2:03 pm)Jehanne Wrote: The set of Natural Numbers is an (countably) infinite set, an actual infinite of numbers, even if we cannot "count" them.  So, too, are the set of numbers between any 2 numbers of the real number line, which would be an uncountable infinite set.  I realize that no one can "count" those numbers, just as no one can enumerate the number of past events, if, in fact, the Cosmos is without a beginning.  I am just claiming that "actual infinities" of physical things may exist, just as they do in transfinite arithmetic.  If space is infinitely divisible, and, time, too, then those are actual infinities of things; if not, then they are finite.  You (and, Craig) seem to be conflating the act of enumerating a set with the intrinsic membership of that set!  Again, what is the cardinality of the set of "future praises" in Heaven?!  Don't say that it is a "potential infinite"; I am not asking you to count it!  I am asking you what its cardinality is?!  Now, if you are going to insist on sets on being "potentially infinite", then please define what the cardinality of a "potentially infinite set" is!  And, then, answer the question as to if some potentially infinite sets are bigger than others.

So you have a set of numbers that do not represent anything?  Then they are just numbers, that do not correspond to the two points in any way.

And what you are describing is a potential infinite, because per your wikipedia page
Quote:This is contrasted with potential infinity, in which a non-terminating process (such as "add 1 to the previous number") produces an unending "infinite" sequence of results, but each individual result is finite and is achieved in a finite number of steps.

Do you agree, that even if you can potentially divide something infinity, that your results each time are a finite number?

No, I am saying that the sum of those finite numbers (their ordinality) is infinite. But, once again, please answer my question, "Are some potential infinities bigger than others?"
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#40
RE: Actual infinities.
(October 17, 2017 at 2:34 pm)Jehanne Wrote:
(October 17, 2017 at 2:20 pm)RoadRunner79 Wrote: So you have a set of numbers that do not represent anything?  Then they are just numbers, that do not correspond to the two points in any way.

And what you are describing is a potential infinite, because per your wikipedia page

Do you agree, that even if you can potentially divide something infinity, that your results each time are a finite number?

No, I am saying that the sum of those finite numbers (their ordinality) is infinite.  But, once again, please answer my question, "Are some potential infinities bigger than others?"

I agree, that you can make up fractions potentially forever.  However what they represent is still part of a finite thing.  You are talking about the process.
I do think, that the more loosely define your set, then a infinite multi-dimensional array would be technically larger than and infinite single dimension array (such as used in addition).  

How do you apply this to the topic?
Its seems, that you are talking about abstractions, not in any way reference to the two points of the OP.  How do you connect these?

Do you see the logical contradiction with having an actual completed set, that is by definition never complete?
It is said that an argument is what convinces reasonable men and a proof is what it takes to convince even an unreasonable man.  - Alexander Vilenkin
If I am shown my error, I will be the first to throw my books into the fire.  - Martin Luther
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