parid0928 | 28 Nov 2002 12:55:31 
You've raised an important question, and it won't go
away until we decide what to do about it: what will be
the fate of the "extent of validity" semantic?
[SH: is "extent of validity" a "situation feature"?]
—srn@coolheads.com
parid0928 | Wed, 12 Feb 2003 11:42:35 
is "extent of validity" a "situation feature"?
—algermissen@acm.org