Our panel of 91 professional philosophers has responded to

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

ask a question

recent responses

all topics

info

⚲

Question of the Day

Hello! I'd like to ask about syllogisms. I have a particular problem when understanding this certain syllogism: Some girls are single. Some girls are sad. Therefore, some girls are single and sad. While I think it is valid, I cannot fully make an accurate explanation as to why it is. Hoping somebody could help me. Thanks!

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.