Split Phantom Diamonds:
This week I am teaching Split Phantom Diamonds and Split Phantom 1/4 Tags.
A couple of people from my class have pointed out to me that the only thing they could
find in your definitions on these concepts was a brief mention at the end of
Split Phantom Boxes. Perhaps you could add a page on these concepts, or at least
a link to your Split Phantom Boxes page, to make these easier to find?
Or, let us know if they are discussed somewhere else that we didn't notice?
