Our panel of 91 professional philosophers has responded to

218
 questions about 
Education
105
 questions about 
Art
75
 questions about 
Beauty
69
 questions about 
Business
134
 questions about 
Love
374
 questions about 
Logic
287
 questions about 
Language
2
 questions about 
Culture
36
 questions about 
Literature
574
 questions about 
Philosophy
208
 questions about 
Science
54
 questions about 
Medicine
58
 questions about 
Punishment
110
 questions about 
Biology
282
 questions about 
Knowledge
81
 questions about 
Identity
58
 questions about 
Abortion
27
 questions about 
Gender
5
 questions about 
Euthanasia
80
 questions about 
Death
1280
 questions about 
Ethics
4
 questions about 
Economics
244
 questions about 
Justice
39
 questions about 
Race
96
 questions about 
Time
43
 questions about 
Color
31
 questions about 
Space
392
 questions about 
Religion
151
 questions about 
Existence
70
 questions about 
Truth
124
 questions about 
Profession
88
 questions about 
Physics
154
 questions about 
Sex
67
 questions about 
Feminism
170
 questions about 
Freedom
32
 questions about 
Sport
23
 questions about 
History
68
 questions about 
Happiness
221
 questions about 
Value
117
 questions about 
Children
75
 questions about 
Perception
110
 questions about 
Animals
77
 questions about 
Emotion
24
 questions about 
Suicide
34
 questions about 
Music
89
 questions about 
Law
284
 questions about 
Mind
2
 questions about 
Action
51
 questions about 
War

Question of the Day

The syllogism in question is not valid. Nothing logically guarantees that the set of single girls and the set of sad girls overlap. Even if both sets have members, it does not follow that they have any members in common. Compare: Some polygons are squares. Some polygons are triangles. But it is false that some polygons are square triangles.