On 1/31/2013 6:12 PM, Craig Weinberg wrote:
On Thursday, January 31, 2013 5:38:28 PM UTC-5, Stephen Paul King wrote:
On 1/31/2013 4:46 PM, Telmo Menezes wrote:
What's an entity?
Any system whose canonical description can be associated with
some kind of fixed point theorem.
Nice. Interestingly this just came up on another list five minutes
ago. Some interesting etymology too:
1590s, from Late Latin entitatem (nom. entitas), from ens
(genitive entis) "a thing," proposed by Caesar as prp. of esse "be"
(see is), to render Greek philosophical term to on "that which is"
(from neuter of prp. of einai "to be;" see essence). Originally
abstract; concrete sense in English is from 1620s.
late 14c., from Old French entier "whole, unbroken, intact,
complete," from Latin integrum (nom. integer; see integer).
A slightly different meaning when we formalize it... a literal entity
has a thingness definable by position. A more figurative or casual
reference could mean like a 'the aspect of a presence or
representation which emphasizes its closure'.
Position is one kind of dimension that is identifiable via a fixed
point, for example: Craig is at such and such an address.
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