Slept through Physics. Ugh. Went to ATP seminar; Andrews talked about TPS. It had a really cute interfact involving special fonts and layout in an xterm my context pales in comparison to. Subscript iotas! And big row-spanning brackets! So sexy. The ConCert meeting was sort of ad hoc and agendaless. At kaustuv's prompting I asked Bob Harper about coinductive types. He gave me some old course notes and referred me to Freyd's 1990 LICS paper. Arrgh, but interpreting the nu in heyting algebras with "enough joins" still doesn't seem sound.
Got category theory grading done for the week, and watched some Full Metal Panic with some of the usual anime suspects.