Skip to main content
Search type Search syntax
Tags [tag]
Exact "words here"
Author user:1234
user:me (yours)
Score score:3 (3+)
score:0 (none)
Answers answers:3 (3+)
answers:0 (none)
isaccepted:yes
hasaccepted:no
inquestion:1234
Views views:250
Code code:"if (foo != bar)"
Sections title:apples
body:"apples oranges"
URL url:"*.example.com"
Saves in:saves
Status closed:yes
duplicate:no
migrated:no
wiki:no
Types is:question
is:answer
Exclude -[tag]
-apples
For more details on advanced search visit our help page
Results tagged with
Search options not deleted user 57704

Enriched categories, topoi, abelian categories, monoidal categories, homological algebra.

3 votes
Accepted

Is there a general notion of semigroup action?

Thanks to Andrej Bauer to drawing my attention to this question. This is definitely related to restriction categories and I do recommend the articles by Steve Lack and myself ("Restriction categories …
Robin Cockett's user avatar