/sci/ - Science & Math

Anonymous Wed Jul 29 23:18:57 2020 No.11951767 [View]
File: 8 KB, 475x309, category_product.png [View same] [iqdb] [saucenao] [google]

For any category [math]C[/math] there are two "projection" functors from its arrow category [math]s,t:C^I \to C[/math] whose behavior on objects is to send each C-arrow to its source and target, respectively.
My question is: can [math]s,t[/math] be characterized universally without reference to the definition of [math]C^I[/math], similarly to the characterization of the product as in pic related?

Advanced search
Text to find
Subject [?]Search by post subject. Leave empty for any.
Username [?]Search for user name. Leave empty for any user name.
Tripcode [?]Search for tripcode. Leave empty for any.
Email [?]Search by email. Leave empty for any.
Filename [?]Search by image filename. Leave empty for any.
From Date [?]Enter what date to start searching from. Format is YYYY-MM-DD
To Date [?]Enter what date to start searching until. Format is YYYY-MM-DD
Image hash
Search in	All Posts OPs Only
Deleted posts	Show all posts Show only deleted posts Only show non-deleted posts
Internal posts	Show all posts Show only internal posts Show only archived posts
Order	New posts first Old posts first
Capcode	All Posts Only by Users Only by Mods Only by Admins Only by Developers
Results	Posts Threads
Action	[ Simple ]

Navigation
View posts	[+24]	[+48]	[+96]

/sci/ - Science & Math

Search: