WikiDiscuss

WikiDiscuss


Bunches

Jorge Llambías scripsit:

> I don't think one would normally say that the length
> of something in inches is root 2. I don't see much
> difference in the way we measure lengths and
> durations.

The trouble is that "length" is polymorphic; we speak of the measured
length of a physical object (which is a rational interval, like
"10 cm +/- 5%") as well as the calculated or stipulated length of a
mathematical object (which is a single real number). Duration is not
treated symmetrically: we do not talk of the duration of a mathematical
object, so all durations are measured values.

--
I marvel at the creature: so secret and John Cowan
so sly as he is, to come sporting in the pool jcowan@reutershealth.com
before our very window. Does he think that http://www.reutershealth.com
Men sleep without watch all night? --Faramir http://www.ccil.org/~cowan