Account name:
Password
(OpenID?)
(Forgot it?)
Remember Me
You're viewing
timelets
's journal
Create a Dreamwidth Account
Learn More
Interest
Region
Site and Account
FAQ
Email
Reload page in style:
site
light
timelets
TIL: the difference b/w categories and sets
TIL: the difference b/w categories and sets
Aug
.
25th
,
2018
02:28 pm
timelets
Source: F.W. Lawvere & S.H. Schanuel. 2009, p. 146.
Profile
timelets
Recent Entries
Archive
Reading
Tags
Memories
Profile
February
2026
S
M
T
W
T
F
S
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
Most Popular Tags
art
-
121 uses
biology
-
74 uses
business
-
206 uses
category
-
448 uses
china
-
51 uses
control
-
88 uses
covfefe
-
536 uses
demographics
-
52 uses
dilemma
-
77 uses
economics
-
393 uses
economy
-
51 uses
education
-
81 uses
finance
-
59 uses
health
-
174 uses
history
-
235 uses
image
-
79 uses
information
-
66 uses
innovation
-
289 uses
invention
-
76 uses
jazz
-
160 uses
law
-
78 uses
literature
-
58 uses
logic
-
117 uses
mathematics
-
50 uses
model
-
56 uses
music
-
222 uses
narrative
-
153 uses
nature
-
57 uses
philosophy
-
319 uses
polish
-
131 uses
politics
-
332 uses
problem
-
163 uses
psychology
-
165 uses
quote
-
884 uses
religion
-
48 uses
russia
-
194 uses
science
-
163 uses
snl
-
43 uses
society
-
156 uses
solution
-
77 uses
technology
-
301 uses
theory
-
79 uses
til
-
185 uses
time
-
61 uses
trade-off
-
48 uses
trend
-
205 uses
video
-
538 uses
war
-
240 uses
wsj
-
47 uses
youtube
-
46 uses
Style Credit
Style:
Neutral Good
for
Practicality
by
timeasmymeasure
Expand Cut Tags
No cut tags
Page generated Feb. 26th, 2026 09:19 am
Powered by
Dreamwidth Studios
![[personal profile]](https://www.dreamwidth.org/img/silk/identity/user.png){kind=small}
