#1
We're having an exam on math soon, so I'm looking for some source on which I can find math theory proofs, do you guys know any?
#7
Quote by Pagan_Poetry
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#9
Quote by jetfuel495
Predicate logic proofs are way more fun than math proofs.


Except that it counts as an error of judgement during exams.
#10
Quote by MakinLattes
Can you be a little more specific?



I need to prove every theory related to differentials
#11
Quote by mystical_1
(Invalid img)



Ok. Someone tell me where that goes wrong!

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#12
Quote by IYanoplathizoI
Ok. Someone tell me where that goes wrong!


the 4th line where the dividing happens is shady. denominator man, come on.
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Last edited by Fat Lard at Dec 10, 2011,
#14
Quote by conor-figgy
Tell me which proofs please.


If the function can be differentialed(don't know the english term) in a certain point, then the function is not um... doesn't have a gap there, if that makes any sense, I can study scientific english only from next year :|

^ for starters.
#16
Quote by conor-figgy
Sorry, I don't follow... what do you mean by doesn't have a gap there?



Well, it means the function exists, for example in 1/x, the function in x=0 doesn't exist


Quote by mystical_1



****ing awesome.
Last edited by Zeletros at Dec 10, 2011,
#18
Quote by conor-figgy
So you want to prove that if you can differentiate a function, the function =/= 0 ?



No, the theory that states that if you can differentiate a function in a certain dot, than the function exists in that dot and can be found
#19
Perhaps he means that if a function can be differentiated at a point, then it is continuous at that point.
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#20
Quote by IYanoplathizoI
Ok. Someone tell me where that goes wrong!

Dividing by 0 will do that.
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#21
Quote by mystical_1
(Invalid img)

This is wrong, dividing doesn't work that way.
I’m not the man I used to be, I... I can’t go back to Arkham.

I... I should return to Arkham.


Among the churchyard’s mouldering stones I recognise a name – my own.
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#22
Quote by Kepulix
This is wrong, dividing doesn't work that way.



It does, it's perfectly right.

Except for the fact that A-B=0, but generally it's a paradox
#23
Yep, it's right. Took a closer look at it.


EDIT: Oh, yeah, there's that dividing by 0
I’m not the man I used to be, I... I can’t go back to Arkham.

I... I should return to Arkham.


Among the churchyard’s mouldering stones I recognise a name – my own.
I have come home to Arkham.

Last edited by Kepulix at Dec 10, 2011,
#24
Quote by IYanoplathizoI
Ok. Someone tell me where that goes wrong!


Do the equation where A=B=1 and you will see where it falls apart
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#25
Just do what everyone does, try and do as much of the proof as you can, then just write what you're trying to prove it equals.
#30
Quote by Pleasure2kill
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#31
Quote by Craigo
What?

And logic is much cooler than maths.


Well considering math is composed completely of logic, I'm not seeing the difference
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