A key point is to try and think of how you can relate one case of the problem to a simpler instance of the same problem, rather than tackling it head on.
I think that's a good idea to hang on to. Sometimes easier to say than to do, it seems.
Thanks,
#g
------------------- Graham Klyne <[EMAIL PROTECTED]> PGP: 0FAA 69FF C083 000B A2E9 A131 01B9 1C7A DBCA CB5E
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