Re: Galileo's Paradox



On 11/29/2006 7:36 PM, Tony Orlow wrote:
Eckard Blumschein wrote:
On 11/29/2006 3:58 PM, Tony Orlow wrote:
where one set contains all the
elements of another, plus more, it can rightfully be considered a larger
set.

All of oo?



Yes. All of the naturals are integers. Only half of all the integers are
naturals.

All of the points in (0,1] are in (0,2], but only half of all of the
points in (0,2] are in (0,1].

You are equating two quite different notions: smaller and half as large.
In case of two finite heaps of size a and b of numbers, a=b/2 implies a<b.
In case of a=oo and b=oo, we may have a=b/2 while a is not smaller than
b but simply not comparable: oo = oo/2.

.



Relevant Pages

  • Re: infinity
    ... Only in the sense that a false statement implies anything. ... The issue is existence of sums, ... > but can you deny that, if in concept it existed, that it would be, ... that the "size" of the set of naturals, is in any reasonable sense, ...
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  • Re: Is one-to-one mapping valid for comparing infinite-sized sets?
    ... I changed changed a few names to avoid confusion. ... implies we can recognize naturals. ... given any set of naturals (necessarily finite) ...
    (sci.math)
  • Re: infinity
    ... Note that each m and n are specifically required to be members of the ... set, N, of finite naturals. ... Thus TO is saying that aleph_0 is a member of the set of finite ...
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