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# 1 = 2 revisited

### #21

Posted 26 January 2013 - 08:33 PM

### #22

Posted 27 January 2013 - 06:04 AM

If we're looking for a proof and a mathematical symbol

Spoiler for

Thanks plasmid for taking us out of the box.

With the pitcher and goggles, and infinity tho, I lost track of where the equation fit in.

You might be on the right track, but we're not quite there yet.

*The greatest challenge to any thinker is stating the problem in a way that will allow a solution.*

- Bertrand Russell

### #23

Posted 30 January 2013 - 01:53 AM

### #24

Posted 30 January 2013 - 09:09 AM

According to Prime, my OPs give all the clues necessary to solve.

Let me point out two for this case.

Note that:

- The OP contrasts clever math - like differentiating x x's, which

I think is very clever - with the answer needed to solve this puzzle.

So the answer is not of that type.

- It asserts the equation can stand, with the addition of two things.

Could it be as simple as saying 1 ten-dollar bill = 2 five-dollar bills?

That would be adding two things, but those two things are so similar

it really would not make a puzzle.

The "aha" moment should be forthcoming shortly.

*The greatest challenge to any thinker is stating the problem in a way that will allow a solution.*

- Bertrand Russell

### #25

Posted 15 February 2013 - 05:52 AM

*The greatest challenge to any thinker is stating the problem in a way that will allow a solution.*

- Bertrand Russell

### #26

Posted 25 February 2013 - 06:07 AM

Spoiler for Putting this one to bed

*The greatest challenge to any thinker is stating the problem in a way that will allow a solution.*

- Bertrand Russell

### #27

Posted 10 March 2013 - 10:56 AM

### #28

Posted 10 March 2013 - 12:10 PM

### #29

Posted 10 March 2013 - 04:32 PM

Is the well-known mathematical symbol *i ?*

*I mean,square root of -1?*

### #30

Posted 10 March 2013 - 10:33 PM

Spoiler for I know it is not true...but there is no division by zero

Very nice wolfgang. Definitely honorable mention.

But the OP asks to add a symbol and a well-known proof.

I think this implies something about taking logarithms with base 1.

Krishna, no, sorry that is not what I had in mind.Is the well-known mathematical symbol

i ?I mean,square root of -1?

*The greatest challenge to any thinker is stating the problem in a way that will allow a solution.*

- Bertrand Russell

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