Drawing an Affirmative Conclusion From a Negative Premise|
The conclusion of a standard form categorical syllogism is
affirmative, but at least one of the premises is negative.
- All mice are animals, and some animals
are not dangerous, therefore some mice are
- No honest people steal, and all honest people
pay taxes, so some people who steal pay
Assume that the premises are true. Find an example
which allows the premises to be true but which
clearly contradicts the conclusion.
26 May 1995