Given the following syllogism:
All unicorns are gazelles.
No lions are gazelles.

Some unicorns are not lions.
This syllogism commits the existential fallacy from:
A) The Aristotelian standpoint but not from the Boolean standpoint.
B) The Boolean standpoint but not from the Aristotelian standpoint.
C) Both the Boolean and the Aristotelian standpoints.
D) Neither the Boolean nor the Aristotelian standpoint.
E) The syllogistic standpoint.

Question

Given the following syllogism: 
All unicorns are gazelles.
No lions are gazelles.

Some unicorns are not lions.
This syllogism commits the existential fallacy from:
A) The Aristotelian standpoint but not from the Boolean standpoint. 
B) The Boolean standpoint but not from the Aristotelian standpoint. 
C) Both the Boolean and the Aristotelian standpoints. 
D) Neither the Boolean nor the Aristotelian standpoint. 
E) The syllogistic standpoint.

Quizplus · Accepted Answer

The syllogism commits the existential fallacy from both the Boolean and Aristotelian standpoints. From the Boolean standpoint, the syllogism assumes the existence of unicorns and therefore makes an invalid conclusion. From the Aristotelian standpoint, the syllogism assumes that there are unicorns and that they are included in the distribution of categories. Therefore, the conclusion that some unicorns are not lions commits the existential fallacy.

Given the Following Syllogism