I am just starting to read about category theory, and would very much appreciate it if someone could explain the connection between CS contravariance/covariance and category theory. What would some example categories be (i.e. what are their objects/morphisms?)? Thanks in advance?
views:
68answers:
1
+5
Q:
could someone explain the connection between type covariance/contravariance and category theory?
+1
A:
Hi!
There are very nice videos about contravariance/covariance in Going deep channel in Microsoft Channel9. You can start here:
- E2E: Brian Beckman and Erik Meijer - Co/Contravariance in Physics and Programming, 1 of 3
- E2E: Brian Beckman and Erik Meijer - Co/Contravariance in Physics and Programming, 2 of 3
- E2E: Brian Beckman and Erik Meijer - Co/Contravariance in Physics and Programming, 3 of n
- E2E: Whiteboard Jam Session with Brian Beckman and Greg Meredith - Monads and Coordinate Systems
Tuomas Hietanen
2010-07-20 08:12:06