Reputation
194,807
Next tag badge:
458/400 score
79/80 answers
Badges
20 372 646
Newest
 Enlightened
Impact
~4.3m people reached

6h
awarded  Enlightened
Jul
4
awarded  Nice Answer
Jul
3
awarded  Nice Answer
Jun
21
awarded  Nice Answer
Jun
19
awarded  Guru
Jun
17
awarded  Enlightened
Jun
17
awarded  Nice Answer
Jun
16
awarded  Nice Answer
Jun
13
awarded  Enlightened
Jun
13
awarded  Nice Answer
Jun
9
awarded  Nice Answer
Jun
8
awarded  Guru
Jun
7
awarded  Enlightened
Jun
7
awarded  Nice Answer
May
29
comment If there is in a category $\mathcal{A}$ finite products and equalizers then it has pullbacks
math.overflow is not for homework; it is for discussing research-level questions. You may want to try math.stackexchange instead, which welcomes questions at all levels and where people may provide you with hints for your homework.
May
28
awarded  Nice Answer
May
22
awarded  Enlightened
May
22
awarded  Nice Answer
May
20
awarded  Good Answer
May
19
awarded  Great Answer