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Department
Philosophy
Course
1002
Professor
James Hildebrand
Semester
Spring

Description
The University of Western Ontario London Canada Department of Philosophy Philosophy 212 (001) UW – Introduction to Logic L. Falkenstein Mid-Year Test Wednesday, December 14, 2011 3 hours 7:00pm, EC 2155 Closed Book Page one of one page Answer All Questions 1. Explicate in terms of open and/or closed truth-trees: 6% a. Truth-functional consistency b. Truth-functional falsity 2. Under what conditions is a tree branch open? 2% 3. Give the first three lines of the tree used to test “A ⊃ B” and “~B ⊃ ~A” for t-f equivalence. 3% 4. Use the truth-tree method to answer a and b below. In each case state your result. Where appropriate, recover a truth-value assignment that supports your answer. 6% a. Is the following argument truth-functionally valid? [C ⊃ (A & U)] ≡ (C v A) ~(A & ~B) (B & A) ⊃ (~C v ~U) C v B b. Are the following sentences truth-functionally equivalent?
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