On 12/10/94 at 15:19:00 Martin Schoenert said:

You seem to favor the physical model. There the reflection has no
real realization, and it makes sense to distinguish between the
rotations and the reflection.

That is probably an accurate assessment. However, it should be
pointed out that the edges can be reflected on a physical model,
even though the corners and Face-centers cannot. Mathematically,
this means that <Q[E]> generates reflections, but <Q[C]>
and <Q[F]> do not.

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Robert G. Bryan (Jerry Bryan)                        (304) 293-5192
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