Write the truth value of the following compound statements `:`
Blue whale is a mammal or a rapitale.

Answer

To determine the truth value of the compound statement "Blue whale is a mammal or a reptile," we can break it down into its component statements and analyze their truth values.

### Step-by-Step Solution:

1. **Identify the Component Statements**:
- Let \( p \): "Blue whale is a mammal."
- Let \( q \): "Blue whale is a reptile."

2. **Determine the Truth Values of Each Component Statement**:
- For \( p \): "Blue whale is a mammal." This statement is **true** because blue whales are indeed mammals.
- For \( q \): "Blue whale is a reptile." This statement is **false** because blue whales are not reptiles; they are mammals.

3. **Combine the Truth Values Using the Logical OR**:
- The compound statement is structured as \( p \lor q \) (p OR q).
- In logic, the OR operator results in true if at least one of the statements is true.

4. **Evaluate the Compound Statement**:
- Since \( p \) is true and \( q \) is false, we have:
- \( p \lor q = \text{true} \lor \text{false} = \text{true} \).

5. **Conclusion**:
- The truth value of the compound statement "Blue whale is a mammal or a reptile" is **true**.