Skip to main content
2 events
when toggle format what by license comment
Feb 11, 2013 at 23:22 comment added Juan OS Thanks Chris! I will look into your reference, hopefully I won't get confused all over again. Regarding my statement of the principle of duality I don't think it's wrong (though, granted, I didn't add the meaning of $\mathfrak{P}$, rather, as Andreas said, I mistook the model for the theory. Thanks for your help!
Feb 11, 2013 at 21:47 history answered Chris Godsil CC BY-SA 3.0