we analyze the original statement and its variations, we can determine the truth values as follows:
Original Statement: If John is on vacation, then he is in London.
Let's assign variables to the statements:
P: John is on vacation.
Q: John is in London.
The truth table for the original statement is as follows:
| P | Q | P → Q |
|---|---|-------|
| T | T | T |
| T | F | F |
| F | T | T |
| F | F | T |
Now let's analyze the truth values of the converse, inverse, and contrapositive statements:
Converse: If John is not on vacation, then he is not in London.
Let's assign variables to the converse statement:
P': John is not on vacation.
Q': John is not in London.
The truth table for the converse statement is as follows:
| P' | Q' | P' → Q' |
|---|---|-------|
| T | T | T |
| T | F | F |
| F | T | T |
| F | F | T |
Inverse: If John is in London, then he is on vacation.
Let's assign variables to the inverse statement:
P'': John is in London.
Q'': John is on vacation.
The truth table for the inverse statement is as follows:
| P'' | Q'' | P'' → Q'' |
|---|---|-------|
| T | T | T |
| T | F | F |
| F | T | T |
| F | F | T |
Contrapositive: If John is not in London, then he is not on vacation.
Let's assign variables to the contrapositive statement:
P''': John is not in London.
Q''': John is not on vacation.
The truth table for the contrapositive statement is as follows:
| P''' | Q''' | P''' → Q''' |
|---|---|-------|
| T | T | T |
| T | F | F |
| F | T | T |
| F | F | T |
Now, let's determine the truth values of each statement:
Original Statement: If John is on vacation, then he is in London.
The truth value is T (true) because if John is on vacation, it is true that he is in London.
Converse: If John is not on vacation, then he is not in London.
The truth value is F (false) because it is possible for John to be in London without being on vacation (e.g., visiting friends).
Inverse: If John is in London, then he is on vacation.
The truth value is F (false) because it is possible for John to be in London without being on vacation (e.g., visiting friends).
Contrapositive: If John is not in London, then he is not on vacation.
The truth value is T (true) because if John is not in London, it is true that he is not on vacation.
Original Statement: True
Converse: False
Inverse: False
Contrapositive: True