[r-t] Changes to decisions again

Richard Smith richard at ex-parrot.com
Mon Jan 23 13:48:25 UTC 2006

Philip Earis wrote:

> "It also allows cylindrical.  "Any sequence of true
> permutations" does not require all the permutations to
> involve all the bells..."
> Eh?! It does in my mind. I think we're using a different definition of
> permutations...

Well, people talk about permutations of r objects form a set
of n objects -- that's what nPr is.  But even if you ignore
that, do you agree that 123456 is a permutation and so is
12345678?  If so, what is to stop the ringers of 7 and 8
from stopping for a beer break during a peal?


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