---
tag: DAZMJB27SV
kind: concept
name: Obverse
sources:
  - wikipedia: en:76765067@r1368301704
    locator: Glossary of logic, section O
    note: adopted
    mention: wikipedia://en/76765067#94ON
    sections: [Summary]
inventory: [8NBFEFJ022]
---

## Summary

In traditional logic, the process of negating the predicate of a categorical proposition and changing its quality (affirmative to negative, or vice versa) without altering its truth value.