---
title: "DeMorgan's Law"
type: concept
related: [Demorgan S Law, Mutually Exclusive]
source: https://www.jemoka.com/posts/kbhdemorgan_s_law/
confidence: high
status: active
---

Suppose you have two non mutually exclusive sets \(E\) or \(F\).
DeMorgan&rsquo;s Law:
\begin{equation} (E\ and\ F)^{C} = (E^{C}\ or\ F^{C}) \end{equation}
\begin{equation} (E\ or\ F)^{C} = (E^{C}\ and\ F^{C}) \end{equation}
