---
tag: X9T49JQ6XF
kind: concept
name: Non-standard logic
sources:
  - wikipedia: en:76765067@r1368301704
    locator: Glossary of logic, section N
    note: adopted
    mention: wikipedia://en/76765067#BGAE
    sections: [Summary]
inventory: [5GP2V7WW04]
---

## Summary

Logics that diverge from or extend classical logic, including non-classical logics, many-valued logics, and modal logics, among others. Also called non-classical logic.