From: pat hayes (phayes@ai.uwf.edu)
Date: 10/24/02
> >> Axioms 2.2-5 and 2.2-6 imply that *NegInf* is before all time > points, and *PosInf* after, even in branching time. Is that what > was intended? Intended or not, it works OK. Suppose you had a model where each branch had its own PosInf: extend it by adding a single PosSuperInf which is just past all the PosInf's. Then erase the PosInf's. .... > > > Why do we need both *second* and *sec*? (etc.) What does > *DayOfWeek* denote exactly? I realize that they are introduced in > connection with time intervals that lie on "official" boundaries, > such as next Friday, as opposed to some random 24-hour period. I > just don't see how the extra temporal units contribute. If we start > with an "era" (such as CE(..)), and carve intervals out by first > getting the n'th year, then the m'th day of that year, and so forth, > we can use the original units to keep track of how long each > interval is. That's what happens in my version, which lacks all > temporal units except *second*, *minute*, *hour*, *day*, *week*, > *month*, and *year*. I could make it look more like the original if > I understood the original. What about the day that starts at 3pm on a Thursday and ends at 3pm on the following Friday (like the LeMans 24 hour race) ? Pat -- --------------------------------------------------------------------- IHMC (850)434 8903 home 40 South Alcaniz St. (850)202 4416 office Pensacola (850)202 4440 fax FL 32501 (850)291 0667 cell phayes@ai.uwf.edu http:/ http://www.coginst.uwf.edu/~phayes
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