Our panel of 91 professional philosophers has responded to

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

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.