From: Brett Paatsch (paatschb@ocean.com.au)
Date: Tue Feb 25 2003 - 17:44:50 MST
Emlyn writes:
> The first time I came across it was on an old Doctor Who
> episode, but I'm sure they lifted it from elsewhere. I don't
> know where, though.
Yeah. I think its real old. Like maybe ancient Greek sort
of old. But I'm not sure either. And because I'm not sure I
wonder if its significance has been fully appreciated. I
wonder if it is an instance of a class of phenonenon that has
largely been neglected.
For some reason I felt inclined to check out ternary logic
(tri-nary logic) via Google to see how ternary logic relates
to binary logic. I'm still messing and mulling but getting some
resonation.
>
> btw, you can also ask either guardian "If I had come to see
> you yesterday, and asked you the way to St Ives, what would
> you have told me?". Whatever answer the guardian gives will
> be the correct way.
Thanks for pointing that out. I hadn't seen that side. Though there
does seem to be a certain aesthetic symmetry in having two
answers. I note that one still can't tell whether they have spoken
to the liar or the truth teller but one still gets the necessary
information and one doesn't have to invert what one is told.
Neat.
- Brett
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