specially hereabouts.

JC: Do you assert that bijections exist among any of the classes S_1, S_2, ..., S_9?
    All of the classes?  Would a graph of the bijections among the 9 classes of S
    be connected?  Or would the bijections among the nine objected be related via
    two distinctive connected graphs?

I'm not sure about all of what you are asking.  What will happen is that the signs in
each sign domain S_j will form up into various sorts of &quot;equivalence classes&quot; (EC's),
and then the releva