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Author | Topic: A question of numbers (one for the maths fans) | |||||||||||||||||||
fallacycop Member (Idle past 5546 days) Posts: 692 From: Fortaleza-CE Brazil Joined: |
riVeRraT writes: You can't subtract it long hand, one digit at a time. But what is to prevent us from subtracting all digits at once? ever heard of math recursion?
You can't subtract .9999999.... logically. That assumes infinity has an end.
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fallacycop Member (Idle past 5546 days) Posts: 692 From: Fortaleza-CE Brazil Joined: |
CK writes: Are you planning on explaining why you posted that question?
In this first post - you will get nothing from me but a question - why I have asked the question we can discuss later once we have had some discussion about it.
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fallacycop Member (Idle past 5546 days) Posts: 692 From: Fortaleza-CE Brazil Joined: |
riVeRraT writes: That's seems to be self contradictory. If you get why 0.999...=1, how can you not agree with the math?
It's not like I don't get why .9999...= 1, I do. I just don't agree with the math. I can prove that 0.9999... = 1 also Sorry but I can't help it. 0.333... is not a whole number.1/3 of a circle with the circumference of 1 yard = 0.333333.... 1 yard = 0.914400 meters 1/3 of 0.914400 = 0.3048 0.3048 meters = 0.33333....yards. So 0.3333... is a whole number.
Now do it in reverse, and you will find that 0.99999=1 You seem to have only a tenuous grasp of what a mathmatical proof is supposed to look like.
The real problem lies in that we do not have an accurate way of expressing 1/3 in decimals. isn't 0.333... accurate? why not?
If 0.9999... is representing something in the universe, and our universe is infinate, then the number can go on, and on without ever being 1. The digits don't have to go on and on one at a time. they can come all at once. ever heard of math recursion?
If the universe is finate, then 0.9999... will eventually come to an end, then infinity only exists in our subjective minds. can you explain to me how did you sneak god into the conversasion?
That means that 0.9999.... = God.
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fallacycop Member (Idle past 5546 days) Posts: 692 From: Fortaleza-CE Brazil Joined: |
riVeRraT writes: could you answer the question instead of dodging it?
There is nothing "all" about infinity.I also do not neccesarly think infinity actually can exist either. It's only a thought, not a number. Sure it is not a member of the Z set. But not being an integer number doesn't make infinity non-existent.How can you subtract 0.9999... from 9.9999 digit by digit if the digits have no end? You will never solve the equation. The numbers have no end, therefor the equation has no end. ever thought there might be other ways to do it besides longhand? ever wondered why it's called longhand?
So if .9999...=1 then infinity does not exist. How does 0.999...=1 prevents infinity from existing? This only happens if the number is actually representing something. We are talking about pure math here. The fact that the number may or may not represent anything is completely besides the point.
Is it impossible for a number to not represent something?
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fallacycop Member (Idle past 5546 days) Posts: 692 From: Fortaleza-CE Brazil Joined: |
riVeRraT writes: Ok I'll try. The problem is that you are using a finite symbol to represent infinity. Try writing it out. 0.999... Ok, I'm done. what was the fuss about?
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fallacycop Member (Idle past 5546 days) Posts: 692 From: Fortaleza-CE Brazil Joined: |
Of course you knew I meant without the finite symbol, so you are just wasting our time now. You should be more open to other peoples points. I'm not wasting anybody's time , I don't think. I was just pointing out that the elipses are a valid way of representing a never endding self repeating decimal number. there are other valid ways to represent numbers besides the longhand one. There are even ways to represent numbers that do not repeat themselves over and over again. π is one of them.I'll take it as you can't, and let you off the hook. Edited by fallacycop, : No reason given.
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fallacycop Member (Idle past 5546 days) Posts: 692 From: Fortaleza-CE Brazil Joined: |
riVeRraT writes: I don't have a problem with god's existence as a subjective concept. that would amount to refusing to even accept sentences with the word god as being meaningfull ,like (statement: I believe in god. anser: you make no sense). I don't think anybody would go that far. except that you do. you're like (statement: 9.999... -0.999... = 9 answer: your math makes no sense).
Infinity is a subjective concept. If infinity exists, then so does God.0.999... = God
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fallacycop Member (Idle past 5546 days) Posts: 692 From: Fortaleza-CE Brazil Joined: |
I was just pointing out that the elipses are a valid way of representing a never endding self repeating decimal number
Well wasn't that the point of my statement? The problem is you are expressing an infiniate thing, with a finite symbol. Edited by fallacycop, : No reason given.
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fallacycop Member (Idle past 5546 days) Posts: 692 From: Fortaleza-CE Brazil Joined: |
I was actually going to say, that 0.999... can be one, if it represents distance. Eventually it will come back on itself. choosing to use the number to represent a distance is completely besides the point here. we are talking about pure math here.
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fallacycop Member (Idle past 5546 days) Posts: 692 From: Fortaleza-CE Brazil Joined: |
I have seen people reason away 2+2=4, why can't what I am saying have some validity to it? There may very well be a point to what you are saying. But if there is, you have not made it yet. where is the beef of your logic? we say that 1.0 is a way of representing a number, and that 0.999... is another way of representing that same number. Just as 1/3 is a way of representing a number a and 0.333... is another way of representing the same number. you seem to have objections to the former but not to the latter. why is that?
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fallacycop Member (Idle past 5546 days) Posts: 692 From: Fortaleza-CE Brazil Joined: |
All that means is the pie can never be fully resolved in a 10 based number system. That doesn't mean that can't be resolved. Yes it does. Ever heard of irrational numbers?
For practicle purposes, say like in construction, 3.141 is good enough to build even the tallest building.
practical purposes are completely besides the point. we are talking about pure math here.
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fallacycop Member (Idle past 5546 days) Posts: 692 From: Fortaleza-CE Brazil Joined: |
If it went on forever, then you could take an infinite line and make any size circle out of it. But if you travel down an infinate line, you never go over it twice. that would depend on how you define your infinite line and on how fast you are traveling. there are ways of making a one to one correspondence from every point in an line to every point (but one) in a circle of any size.
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