Write the following in symbols :
Not only the children, but also Mothers and Fathers were killed.

Answer

To write the statement "Not only the children, but also Mothers and Fathers were killed" in symbols, we can follow these steps:

### Step-by-Step Solution:

1. **Identify the Components of the Statement**:
- The statement mentions three groups: children, mothers, and fathers.
- We need to express that all three groups were killed.

2. **Define Symbols for Each Group**:
- Let \( P \) represent "the children were killed".
- Let \( Q \) represent "the mothers were killed".
- Let \( R \) represent "the fathers were killed".

3. **Understanding the Structure of the Statement**:
- The phrase "Not only... but also..." indicates that both parts of the statement are true.
- This means we need to express that both \( P \) and \( Q \) and \( R \) are true.

4. **Combine the Statements**:
- The statement can be expressed as:
- \( P \) (children were killed) is true.
- \( Q \) (mothers were killed) is true.
- \( R \) (fathers were killed) is true.
- Therefore, we can combine these using the logical conjunction (AND), denoted by \( \land \).

5. **Final Expression**:
- The final expression in symbols will be:
\[ P \land Q \land R \]
- This indicates that all three groups were killed.

### Final Answer:
\[ P \land Q \land R \]