🚀 go-pugleaf

jbaez@riesz.mit.edu (John C. Baez) writes:
: In article <1992Oct5.125835.15091@sei.cmu.edu> firth@sei.cmu.edu (Robert Firth) writes:
: >In article <1992Oct5.091234.29484@nuscc.nus.sg> matmcinn@nuscc.nus.sg (Mcinnes B T (Dr)) writes:
: >
: >>So naturally what I meant was that CLASSICAL spacetime IS a
: >>semi-riemannian manifold.
: >
: >... and later ...
: >
: >>Spacetime is the set of all events.
: >
: >Now I'm *really* confused!  Which of the above mutually contradictory
: >views do you in fact hold?
: 
: I must have drunk too much at the reception 'cause I'm going to try to
: stick up for McInnes B T (Dr).  He is not contradictory if he assumes
: that spacetime is a semi-Riemannian manifold, hence a set of point, and
: if he assumes that each point is, or designates, an event.  The latter
				    ^^^^^^^^^^^^^^
 Too bad, you were doing well up to this point. It IS, it doesn't
designate.

: is pretty standard GR rhetoric, but don't ask me what an "event" is or
: I'll just say "a point in spacetime."  :-)
: 
: By the way, I love the subject line except for that extra "Z" which I am
: assiduously deleting
On what grounds?

ps I am not responsible for the "Dr" bit. I leave it in so as to avoid
accusations that I have not been doing my homework. Also because I don't
know how to remove it.

g.