For each of the following arguments,
a. Translate the argument into standard form.
b. Name the mood and figure of its standard-form translation.
c. Test its validity using a Venn diagram. If it is valid, give its traditional name.
d. If it is invalid, name the fallacy it commits.

The after-image is not in physical space. The brain-process is. So the after-image is not a brain-process.

—J. J. C. Smart, “Sensations and Brain Processes,”
Philosophical Review , April 1959