Questions: Introduction to truth tables with biconditional statements
Complete the following truth table. Use T for true and F for false. You may add more columns, but those added columns will not be graded
Transcript text: Introduction to truth tables with biconditional statements
Complete the following truth table. Use $T$ for true and $F$ for false. You may add more columns, but those added columns will not be graded
Solution
Solution Steps
Step 1: Understanding the Biconditional Statement
The biconditional statement \( P \leftrightarrow Q \) is true when both \( P \) and \( Q \) have the same truth value. That is, \( P \leftrightarrow Q \) is true if both \( P \) and \( Q \) are true or both are false. Otherwise, it is false.
Step 2: Evaluating Each Row
First Row (\( P = T \), \( Q = T \)): Since both \( P \) and \( Q \) are true, \( P \leftrightarrow Q \) is true.
Second Row (\( P = T \), \( Q = F \)): Since \( P \) is true and \( Q \) is false, \( P \leftrightarrow Q \) is false.
Third Row (\( P = F \), \( Q = T \)): Since \( P \) is false and \( Q \) is true, \( P \leftrightarrow Q \) is false.
Fourth Row (\( P = F \), \( Q = F \)): Since both \( P \) and \( Q \) are false, \( P \leftrightarrow Q \) is true.
Final Answer
The completed truth table is:
| P | Q | P ↔ Q |
|---|---|-------|
| T | T | T |
| T | F | F |
| F | T | F |
| F | F | T |
\\(\boxed{\text{See the completed truth table above}}\\)