5:
This one is just stupid, x is not a function so you can't take it's derivative.
6:
They assume x * x is x+x+x+x+... which is false if x is negative. I don't think this is why the proof fails but I don't care. I think it's the same as proof 5.
7:
The sum S is infinite, it doesn't make any sesne to say S-A is 4S because nothing can be the 4 times more infinite than something else.
Firstly, remember that we can't really interpret 0.000...1 as a finite decimal value, but rather, the point that by definition bounds the limit of 1/n as n gets infinitely large. This point is of course 0 (which will be subsequently proven).
For any two values x1 and x2, x1/n can be made arbitrarily close to x2/n by taking n to be a sufficiently large number. Thus,
lim (n→∞) x1/n = lim (n→∞) x2/n, for all x
Since x is a constant, we can extend the notion and say that
lim (n→∞) x1/n = lim (n→∞) x2/n for all x =>
x1[lim (n→∞) 1/n] = x2[lim (n→∞) 1/n] for all x
7:
The sum S is infinite, it doesn't make any sesne to say S-A is 4S because nothing can be the 4 times more infinite than something else.
No, you just can't rearrange infinite series that don't conditionally converge because you can make it equal whatever you want (not to mention divergent series).
ieat wouldn't 10^-n have been easier? :P
Last edited by bluguerrilla; 10-19-2009, 11:29 AM.
Comment