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new forum - impossible math


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6 replies to this topic

#1 comperr

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Posted 22 June 2007 - 11:33 PM

I know of at least 25 proofs to impossible things in math like 0=1; ln(-1) = ln(1) and such. It would be nice to have a forum for that topic.
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#2 rookie1ja

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Posted 23 June 2007 - 07:39 AM

"New Puzzles" forum should be sufficient for that ... however, if you get it over 30 I will create a forum for you
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#3 comperr

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Posted 25 June 2007 - 03:19 AM

I will get thirty - don't worry
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#4 mathemagister

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Posted 06 July 2007 - 11:21 AM

Out of the so-called proofs, are there any without a disguised division by 0? I've never seen one. All of these mathematical fallacies that I've seen have disguised division by 0.

For example:

Somewhere it says x=y and somwhere else it cancels out like this:
...
(x-y)ab = g(x-y)
ab = g
...

And you'd think nothing wrong happened but you've divided by 0 disguised as x-y as x = y.
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#5 comperr

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Posted 06 July 2007 - 10:57 PM

Yes. Most of them have no divide by zero
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#6 mathemagister

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Posted 07 July 2007 - 08:38 PM

Nice! Can you PM them to me please?
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#7 comperr

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Posted 08 July 2007 - 03:02 AM

sure
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