Arrow Logic 101
A Learning Lounge course, partly about the Arrow system and partly relating to Monads.Yde Venema's A Crash Course in Arrow Logic (1997) is by now the only online available paper on arrow logic.
Also refer to the offline book Modal Logic (Venema et al.), a great book on modal logic. Once it was downloadable, but no longer.
This page is linked from: Learning Lounge TUNES vs the WWW