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| Q. |
A deductive argument is sound if and only if it is |
| A. | valid and all its premises are true |
| B. | invalid and all its premises are true |
| C. | is valid and one of the premise is false |
| D. | is valid and its conclusion is false. |
| Answer» A. valid and all its premises are true | |
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Essential of Formal LogicNo comments yet