> Philip Tellis forced the electrons to say:
> > Happy last day of MCMXCIX.
> >
> > Philip
>
> Just wondering...
>
> Shouldn't that be MIM? Or is it MCMIC?
>
> Binand
Nope. A numeral can only be preceded by a numeral that is >= itself, or
one or two degrees less depending on which represents the unit for that
power of X.
Therefore,
M can be preceded by anything larger, or C. It cannot be preceded by D
because D is not a unit. L, X, V and I are all more than two degrees less
than M.
Similarly, for C, it can be preceded by M, D, or X. L is not a unit, X, V
and I are more than two degrees less.
D can be preceded by M or C. L by M, D, C, X. X by M, D, C, L, I. V by M,
D, C, L, X, I and I by everything including itself.
Philip
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