[r-t] Principles

[Tony Smith]

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