| Modus Ponens
| If it's got to be
clean, it's got to be Tide. |
 |
|
Source: Good Housekeeping, March 1993, p. 18
Issue: Should I buy Tide?
|
1. If my clothes have got to be clean, then I should
buy Tide.
2. My clothes have got to be
clean.
I should buy Tide |
Evaluation: The argument is valid because we can
repair it as a modus ponens argument.
However, the first premise is not true. There are
other products that will get my clothes just as clean. I can use one of
them instead.
Because of the false premise, this argument is unsound.
|