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Critical Thinking Exercise

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Critical Thinking Exercise
Critical Thinking

Exercise #4

1. P v S P → R VALID S → R R

|P |S |R |P v S |P → R |S →R | |
|T |T |T |T |T |F | |
|T |T |F |F |T |F | |
|T |F |T |T |F |T | |
|T |F |F |T |F |T | |
|F |T |T |T |T |F | |
|F |T |F |T |T |F | |
|F |F |T |T |T |F | |
|F |F |F |T |T |F | |
| | | | | | | |

2. L → (J v R) ~ R → J VALID ~ J → R

|L |J |R |→(JvR) |~R→J |~J→R | |
|T |T |T |T |F |F | |
|T |T |F |F |T |T | |
|T |F |T |F |T |T |
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