Hi O-list I think I remember having read somewhere that Maekawa's theorem about the flat foldability of the creases at a vertex having a difference of +-2 between mountains and valleys has exceptions but I've never come across any of them, except for vertices on edges.
So is it true about the exceptions? Also, is there a theorem about edge vertices? Thanks. -- Jorge Jaramillo <https://www.avast.com/sig-email?utm_medium=email&utm_source=link&utm_campaign=sig-email&utm_content=webmail> Libre de virus. www.avast.com <https://www.avast.com/sig-email?utm_medium=email&utm_source=link&utm_campaign=sig-email&utm_content=webmail> <#DAB4FAD8-2DD7-40BB-A1B8-4E2AA1F9FDF2>
