Re: Contexts and quantifiers in KIFJim Fulton <email@example.com>
Date: Wed, 14 Apr 93 16:21:55 -0700
From: Jim Fulton <firstname.lastname@example.org>
To: email@example.com, firstname.lastname@example.org
Subject: Re: Contexts and quantifiers in KIF
Cc: email@example.com, interlingua@ISI.EDU, srkb@ISI.EDU
I think our disagreement here is fundamental. What is expressed by contrary-
to-fact but true modal statements (e.g., Bush could have been re-elected but
wasn't) is not a data structure. The statement is a data structure. The
truth represented by that data structure is a real fact about the world.
We have criteria for exploring contrary-to-fact hypotheticals (for playing
what-if games), for distinguishing truth from falsity, consistency from
inconsistency, likely from unlikely. Those criteria are based not on the
syntax of a data structure but on what we learn from the real world and
extrapolate beyond it.