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Directions: For all of the problems in this section, assume that the given proposition is true, perform the required inference, and state the resultant proposition. Be sure to state the resultant truth values. 1. What is the converse of "Some orchids are Cattleyas"? Some Cattleyas are orchids. True. 2. What is the contrapositive of "Some computers are not IBM PC's"? Some nonIBM PC's are not noncomputers. True. 3. What is the obverse of "No business majors are philosophers"? All business majors are nonphilosophers. True. 4. What is the converse of "Some Malay languages are not polynesian derivatives"? Some polynesian derivatives are not Malay languages. Undetermined. 5. What is the contrapositive of "Some laser shows are not mass cults"? Some nonmass cults are not nonlaser shows. True. 6. What is the obverse of "Some Rothko paintings are meditative works"? Some Rothko paintings are not nonmeditative works. True. 7. What is the converse of "Some presidents are smilers"? Some smilers are presidents. True. 8. What is the obverse of "Some meteor showers are Geminids"? Some meteor showers are not nonGeminids. True. 9. What is the contrapositive of "Some crises are learning experiences"? Some nonlearning experiences are noncrises. Undetermined. 10. What is the converse of " No Presidents are persons who misplace tapes"? No persons who misplace tapes are Presidents. True. Please check to see you have written the truth values for the problems in Part I and Part II. 

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