Originally posted by 37818
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Night, Leo!
Wait, how are we defining 'night'?
"He is no fool who gives what he cannot keep to gain that which he cannot lose." - Jim Elliot
"Forgiveness is the way of love." Gary Chapman
My Personal Blog
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Originally posted by 37818 View PostCan we prove this? Can we discuss the reasons for this being the case?
It's like chess: the rules are that bishops can only move diagonally. If you move your bishop horizontally you're not playing chess anymore.
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Originally posted by Paprika View PostI'm not arguing for the result of 1/0 to be defined, but that the operation of division be extended to having 0 as divisor.
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Originally posted by Leonhard View PostI'm not sure what you're talking about then. If 1/0 can't have any value, what meaning does it say to extend division to include 0 as a divisor?
Using the basic definition of infinite series, the operation of infinite series is defined for 1-2+3-4+..., ie. a_i=i*(-1)^(i+1); the operation 'makes sense' even though the result is not defined. Are you with me at this point?
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Originally posted by Paprika View PostI distinguish between whether the operation is defined over the values used, and whether the result of the operation is defined:
Using the basic definition of infinite series, the operation of infinite series is defined for 1-2+3-4+..., ie. a_i=i*(-1)^(i+1); the operation 'makes sense' even though the result is not defined. Are you with me at this point?
and that this terms partial sum is divergent, and therefore that result its result is undefined... Yes we agree. Though there are alternative summation methods that can in fact produce a convergent value from the partial sum.
Did you follow that?Last edited by Leonhard; 02-02-2015, 11:47 AM.
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Originally posted by Cow Poke View PostThere's an extra "e" in the title. Vowels cost money!Last edited by Zymologist; 02-02-2015, 11:00 AM.I DENOUNCE DONALD J. TRUMP AND ALL HIS IMMORAL ACTS.
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Originally posted by Leonhard View PostI think so, but if you want to be completely pedantic: there's no such thing as 'operation of infinite series'. If you mean that there's a partial sum for infinite series consisting of
and that this terms partial sum is divergent, and therefore that result its result is undefined... Yes we agree. Though there are alternative summation methods that can in fact produce a convergent value from the partial sum.
Did you follow that?
Therefore we can define the operation of division for the divisor 0 as lim (x->0) a/x even though the result is not defined, hence we get rid of that inelegant hole.
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Originally posted by Paprika View PostThe hole I was referring to was that the division operator was not defined for all real divisors. That hole is plugged, but not every hole can be plugged.
The is undefined. So, if you say that the division operator over a divisor of 0 is equivalent to this limit, you still have not defined it."[Mathematics] is the revealer of every genuine truth, for it knows every hidden secret, and bears the key to every subtlety of letters; whoever, then, has the effrontery to pursue physics while neglecting mathematics should know from the start he will never make his entry through the portals of wisdom."
--Thomas Bradwardine, De Continuo (c. 1325)
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