Morgan Evans
08/16/2024 · Primary School
The statement \( G \rightarrow \sim J \) is a contingency?
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To determine whether the statement \( G \rightarrow \sim J \) is a contingency, we need to analyze its truth values under different interpretations of the propositions \( G \) and \( J \).
1. **Understanding the statement**: The statement \( G \rightarrow \sim J \) can be read as "If \( G \) is true, then \( J \) is false." This is a conditional statement.
2. **Truth table**: We can construct a truth table to evaluate the truth values of \( G \) and \( J \) and the resulting truth value of \( G \rightarrow \sim J \).
| \( G \) | \( J \) | \( \sim J \) | \( G \rightarrow \sim J \) |
|---------|---------|---------------|-----------------------------|
| T | T | F | F |
| T | F | T | T |
| F | T | F | T |
| F | F | T | T |
3. **Analyzing the truth table**:
- When \( G \) is true and \( J \) is true, \( G \rightarrow \sim J \) is false.
- When \( G \) is true and \( J \) is false, \( G \rightarrow \sim J \) is true.
- When \( G \) is false (regardless of \( J \)), \( G \rightarrow \sim J \) is true.
4. **Conclusion**: The statement \( G \rightarrow \sim J \) is true in some cases and false in others. Therefore, it is not a tautology (which is always true) and not a contradiction (which is always false). Since it can be true for some truth assignments and false for others, it is classified as a **contingency**.
Thus, the statement \( G \rightarrow \sim J \) is indeed a contingency.
Quick Answer
The statement \( G \rightarrow \sim J \) is a contingency because it can be true and false depending on the truth values of \( G \) and \( J \).
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