Homework for Philosophy 270, Fall 2009

Homework on §5.2—assigned Mon 10/12 and due Wed 10/14

(i) Analyze, restate the result with all arrows running left to right, and use English notation to restate the version that has left to right arrows:

Unless traffic was bad, Sam was late only if he had car trouble—provided he got an early start

(ii) Synthesize English for the following symbolic analysis in three ways, each of which uses a different one of the three English conditionals:

¬ A ← ¬ L
A: The project went ahead; L: The bids were low