[r-t] Principles

Alexander Holroyd holroyd at math.ubc.ca
Thu Jul 7 00:53:03 UTC 2011

Very interesting...

On Wed, 6 Jul 2011, Tony Smith wrote:

> The definition of principles that requires the number of leads to be the
> same as the number of bells, as well as all the working bells doing the same
> work in the plain course, dates from 1999 when the Decisions were amended to
> recognise Differentials (www.methods.org.uk/archive/ccm1999.htm). Frank
> Blagrove contrived the lead x1678x1678x18x18 which has all the working bells
> doing the same work but only 4 leads in the plain course.
> Best wishes, Tony
> email mailto:smithap at acm.org
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