I want to parse like Superman (was Re: Identity)

[John Cowan]

David Megginson scripsit:

> Here's an interesting problem -- in the world of DC comics, there
> exists no time T in which Superman and Clark Kent both exist
> simultaneously, and as a corollary, there exists no person P such that
> P is both Superman and Clark Kent.  On the other hand, there does
> exist a person who is always *either* Clark Kent or Superman.  

I think I understand what you mean, but it is a problem of appearances,
not identity.  The appearances labeled "Clark Kent" and "Superman"
belong to a single being; Clark Kent is identical to Superman,
in the same sense that the evening star is the morning star, though
they don't have the same appearances (one is in the west, the other
in the east).
> Does this constitute identity?  If so, then I'd imagine that the same
> IP addressed used serially for foo.com, bar.com, and foo.com again
> also establishes the identity of those domains.
> 
> 
> All the best,
> 
> 
> David
> 
> -- 
> David Megginson                 david at megginson.com
>            http://www.megginson.com/
> 
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-- 
John Cowan					cowan at ccil.org
		e'osai ko sarji la lojban.

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