This

paper was mentioned here

before, but not on the home page.

It deserves to get more attention, since it is quite cool.

Warning: This one isn't for the faint of heart, and uses scary terms like polynomial functors, initial algebras and terminal coalgebras, constructive set theory and more...

## Recent comments

19 hours 2 min ago

20 hours 18 min ago

21 hours 52 min ago

22 hours 39 min ago

22 hours 42 min ago

1 day 10 min ago

1 day 25 min ago

1 day 28 min ago

1 day 1 hour ago

1 day 3 hours ago