--- In geometry@yahoogroups.com, "Alberto Monteiro" <albmont@c...>
wrote:
> Katrina wrote:
> >
> > I need some help on my hyperbolic geometry... see if you guys can
> > help me out
> >
> > 1) In hyperbolic geometry, prove that given a line l and a point
P
> > not on l, there are infinitely many lines through P parallel to l.
> >
> > 2) in hyperbolic geometry, prove that 2 lines are hyperparallel
if
> > and only if they share a common perpendicular.
> >
> ???
>
> Sorry, but AFAIK these are, respectively, the definition of a
hyperbolic
> geometry and the definition of hyperparallel.
>
> Alberto Monteiro