# Andrzej Pietruszczak

> Polish logician and philosopher

**Wikidata**: [Q9153207](https://www.wikidata.org/wiki/Q9153207)  
**Source**: https://4ort.xyz/entity/andrzej-pietruszczak


## References

1. BnF authorities
2. [Source](https://usosweb.umk.pl/kontroler.php?_action=katalog2/osoby/pokazOsobe&os_id=24654)
3. [Source](https://nauka-polska.pl/#/profile/research?id=81679)
4. Virtual International Authority File
5. [Source](https://usosweb.umk.pl/kontroler.php?_action=katalog2%2Fosoby%2FpokazOsobe&os_id=24654&lang=en)
6. Polish Science