---
id: 20250818164800
title: Safety Properties
type: permanent
created: 2025-08-18T20:48:00Z
modified: 2025-08-18T20:54:35Z
tags: []
---

# Safety Properties

Safety properites say that nothing bad ever happens. They
often are specified as such using some formal requirement. 

In [[Temporal Logic | LTL]], they can look like this:

*The traffic light will never been red and green at the same
time.* 

$G \neg (green \wedge red)$

A sort of opposite of safety proprerties is [[liveness-properties]].
