Homework for Philosophy 270, Fall 2012
Homework on §3.5—assigned Mon 9/24 and due Wed 9/26
(to PDF format)
Construct a derivation for the following claim of entailment and, for each stage, tell (i) which gap you chose to work on, (ii) the proximate argument of the gap and the (basic) rules that could have been applied, and (iii) the rule you applied (if there is any that could be applied):
¬ (A ∧ ¬ B) ∧ C, A ∧ D ⊨ B ∧ D
The answers to 3.5 exercise 1 provide samples of the way you might present your answer.