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Philosophy 103: Introduction to Logic
Quiz: Further Immediate Inferences

further limmediate inference logo..

This quiz is based on the following notes:
FURTHER IMMEDIATE INFERENCES

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FURTHER IMMEDIATE INFERENCE ANSWERS

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Directions: Assume the given proposition is true, perform the required logical operation, and state the resultant proposition. Then, state the resultant truth value.

Example: What is the converse of "No bromeliads are arctic plants"?
Answer: No arctic plants are bromeliads. True


1. What is the contrapositive of "Some cryptoanalysts are ex-NSA workers"?
 

 

2. What is the obverse of "Some fossils are not parts of igneous rocks"?
 

 

3. What is the converse of "All movie stars are unhappy persons"?
 

 

4. What is the obverse of "No efficient devices are solar cells"?
 

 

5. What is the contrapositive of "All exhaust fumes are gasses unsafe to breathe"?
 

 

Please be sure you have stated the resultant truth values for these questions.

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