2013

### Skills to be acquired in this tutorial:

None really: this is merely to give you a whiff of the topic of trees for modal logic.

### Reading

Colin Howson, [1997] *Logic with trees* Chapter 12 Section 2

The Howson [1997] does not expand on modal logic (and modal trees) so a text like

Rod Girle [2000] *Modal Logics and Philosophy*

would definitely be a help here.

### Tutorial

There is an explanation at Modal Trees.