All Big Issues
The Instigator
Pro (for)
Losing
23 Points
The Contender
Con (against)
Winning
29 Points

# .99999...(repeating) is equal to 1

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Post Voting Period
The voting period for this debate has ended.
after 12 votes the winner is...
dvhoose
 Voting Style: Open Point System: 7 Point Started: 6/1/2009 Category: Miscellaneous Updated: 8 years ago Status: Post Voting Period Viewed: 4,456 times Debate No: 8506
Debate Rounds (3)

21 comments have been posted on this debate. Showing 1 through 10 records.
Posted by abard124 8 years ago
Damn... I thought I had this one in the bag... Oh well, I suppose I can't win everything... Congrats to my opponent, and pj, whatever happened to that automatic win that you claimed was nearly inevitable??? I suppose I beat you at your own game because I lost this one... So it's like some awful backhanded victory for me...
Posted by abard124 8 years ago
If it was "maliciously weighted" and "factual," would (a) anyone have taken it, and (b) would I actually be losing if that were the case? Think about it.
Posted by PoeJoe 8 years ago
Conduct goes to CON. PRO started a maliciously weighted, factual debate.

Argument is a tie, because PRO gets penalized.
Posted by s0m31john 8 years ago
So an infinite amount of men walk into a bar. The first guy says, "I'll have a beer". The second guy says, "I'll have half a beer". The third guy says, "I'll have a quarter of a beer". And so on.

The bartender says "f*ck you guys" and pours 2 beers.

That bartender knows his math. And so should you guys before opening your mouth.

.999~ = 1.
Posted by tBoonePickens 8 years ago
One cannot divide an infinite amount of times and get a result because the result can only be attained once the calculation is completed and a calculation that has an infinite number of steps will never be completed and thus never have a result. Therefore, .9(r) itself must be rounded in order to use it in any calculation as it would require an infinite number of steps to complete the calculation otherwise and thus not be able to yield a result.
Posted by dvhoose 8 years ago
You just said, and I agree, that one can take any number and continuiously divide it by two. By doing this, one would NEVER reach 0. But when we do it an infinite number of times, we will? How is that possible? It's not. It's IMpossible.
Posted by abard124 8 years ago
True, but infinity does not work the same as finite numbers.

Example: Take any number and divide it by 2. Then repeat it any number of times. You will never got to zero. You will get really close, but you will never get there. Now if you divide it an infinite amount of times, you will reach zero.

As you said, no matter how many 9's come after the decimal point, you won't reach one, but with infinity 9's, you will.
Posted by dvhoose 8 years ago
The Lysol analogy wasn't intended to replicate the situation. NOTHING in our world is infinate, and thus, no analogies exist. My analogy was merely intended to show how humans tend to hear a fact, and assume another fact that's relatively close. Such is the case with 1 and .9(r)
Posted by abard124 8 years ago
Exactly what you said... Humans can't comprehend infinity... It is such a strange concept that it is actually very hard to grasp. Your Lysol analogy doesn't work at all, because it didn't deal with infinity. 99.99%=/=99.9(r)%.
Posted by dvhoose 8 years ago
"Just want to clarify...
In your last argument, when you mention the inability for humans to detect a difference...
How does that work? I mean, math acts the same with infinity... Patterns don't, but math does...
Can you explain that? I'm interested..."

Correct me if I'm wrong, but you're asking why human perception has anything to do with this?

Basically, because humans are unable to comprehend infinity, the two numbers appear to be the same, through all the proofs you showed and a couple others I've seen. Go to youtube and search for 1= -1 or 2+2=5 and watch all the youtube videos where people have seemingly done the impossible. It's all just tricks and mis-manipulations of numbers, and this is no different. Because it all deals with precision (.99 is closer than .9, .999 is closer than .99, etc) by the time we reach an infinite amount of digits, the difference is so small that humans can't tell a difference, thus, our minds make the simple jump that the two are equal. It's like Lysol, claiming that their products kill 99.99% of bacteria. Does it kill all of them? No. Does it kill enough that we think it's killing all of them? Yes. So we make the jump and assume Lysol kills all germs.
12 votes have been placed for this debate. Showing 1 through 10 records.