---
tag: NV1DAFMCN8
kind: concept
name: Necessity of identity
sources:
  - wikipedia: en:76765067@r1368301704
    locator: Glossary of logic, section N
    note: adopted
    mention: wikipedia://en/76765067#SPG8
    sections: [Summary]
inventory: [X2DHKT4Q1P]
---

## Summary

The principle stating that if two objects are identical, they are necessarily identical in all possible worlds.