---
date: 2022-04-05 23:42
aliases: ["sheaves", presheaf, presheaves, copresheaf, copresheaves]
---

Last modified: `=this.file.mday`

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- Tags: 
	- #todo/untagged
- Refs:
	- #todo/add-references
- Links:
	- [canonical sheaf](canonical sheaf)
	- [structure sheaf](Unsorted/structure%20sheaf.md)
	- [stalk](stalk)
	- [[section of a sheaf]]
	- Reflexive sheaf
	- [constructible](Unsorted/constructible%20sheaf.md
	- [dualizing sheaf](dualizing sheaf.md)
	- [shriek](shriek)
	- [Verdier duality](Verdier duality)

---

# sheaf

- Contravariant functor sending initial objects $\emptyset$ to final objects $\ts{\pt}$.3


![](attachments/Pasted%20image%2020210731182304.png)

![](attachments/Pasted%20image%2020220420095510.png)