The Difference between a Set and an Element
- From: JohnCreighton_@xxxxxxxxxxx
- Date: 1 Jan 2007 23:18:12 -0800
Mathematics distinguishes between set and element and the formalisms
has proven useful. However, there is nothing physical about a set. A
set is simply a collection of unique memembers. Since a set of one
element is legitimate. What is the physical difference between me and a
set containing me?
Again I am thinking in the context of AI and the idea of AI by 1000
rules:
http://en.wikipedia.org/wiki/Cyc
In Cyc, the two most important predicate are "is a" to denote
instance and "genls" to denote the subset and super set
relationship. Clearly the distinction is useful in mathematics but do
we generally think in terms of the difference between me and the set
containing me? Is it helpful for an AI system to treat the two
separately in all cases when in common English they are essentially the
same thing. Might we treat the mathematical version of "is a" and
the mathematical version of genls as subtypes of the common idea of X
being Y.
Perhaps there are more then one type of notion of subset and superset
but the common English version in this rare case is the more general
and abstract idea. As a consequence we can define rules in terms of
"is a"::(common English) and they will apply to more specific
concepts of these ideas. This is known as generic programming.
.
- Follow-Ups:
- Re: The Difference between a Set and an Element
- From: Owen
- Re: The Difference between a Set and an Element
- From: Frederick Williams
- Re: The Difference between a Set and an Element
- From: george
- Re: The Difference between a Set and an Element
- From: MoeBlee
- Re: The Difference between a Set and an Element
- From: ernobe
- Re: The Difference between a Set and an Element
- From: William Elliot
- Re: The Difference between a Set and an Element
- From: Peter_Smith
- Re: The Difference between a Set and an Element
- Prev by Date: Re: When to Use Implication?
- Next by Date: The Difference between a Set and an Element
- Previous by thread: And, logically, best for 2007 ...
- Next by thread: Re: The Difference between a Set and an Element
- Index(es):
Relevant Pages
|
Loading