[r-t] Double extent of major
pabs at cantab.net
Tue Dec 4 18:13:01 UTC 2007
Richard Smith said on 04/12/2007 15:13:
> I ought to have added that you are restricted to using
> methods that have sensible parity structures -- i.e. so that
> the three changes when the treble is dodging either have +-+
> or -+- parity. This is exactly the requirement that is
> needed to make a minor method work too.
No - I think you were right the first time. If you ring all of the
possible half-leads the parity doesn't matter.
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