PRODUCTS

Products Overview
Mathematica
Mathematica Student Edition
Mathematica Home Edition
Wolfram CDF Player (free download)
Computable Document Format (CDF)
webMathematica
gridMathematica
Wolfram Workbench
Wolfram SystemModeler
Wolfram Finance Platform
Mathematica Add-Ons
Wolfram|Alpha Products

Solutions Overview

Engineering

Aerospace Engineering & Defense
Chemical Engineering
Control Systems
Electrical Engineering
Image Processing
Industrial Engineering
Materials Science
Mechanical Engineering
Operations Research
Optics
Petroleum Engineering

Biotechnology & Medicine

Bioinformatics
Medical Imaging

Finance, Statistics & Business Analysis

Actuarial Sciences
Data Analysis & Mining
Econometrics
Economics
Financial Engineering & Mathematics
Financial Risk Management
Statistics

Software Engineering & Content Delivery

Authoring & Publishing
Interface Development
Software Engineering
Web Development

Science

Astronomy
Biological Sciences
Chemistry
Environmental Sciences
Geosciences
Social & Behavioral Sciences

Design, Arts & Entertainment

Game Design, Special Effects & Generative Art

Education

STEM Education Initiative
Higher Education
Community & Technical College Education
Primary & Secondary Education
Students

Technology

Computable Document Format (CDF)
High-Performance & Parallel Computing (HPC)
See Also: Technology Guide

PURCHASE

Online Store
Other Ways to Buy
Volume & Site Licensing
Contact Sales
Software
Service
Upgrades
Training
Books
Merchandise

SUPPORT

Support Overview
Mathematica Documentation
Knowledge Base
Learning Center
Technical Services
Community & Forums
Training
Does My Site Have a License?
Wolfram User Portal

COMPANY

About Wolfram Research
News
Events
Wolfram Blog
Partnerships
Employment Opportunities
History of Mathematica
Stephen Wolfram's Home Page
Contact Us

All Sites
Wolfram|Alpha
Demonstrations Project
MathWorld
Integrator
Wolfram Functions Site
Mathematica Journal
Wolfram Media
WolframTones
Wolfram Science
Stephen Wolfram

Mathematica 9 is now available

The Mathematica Book Online

Mathematica Reference Guide

Listing of Named Characters

NotExists

Usage

\[NotExists]

Notes

• Alias: !ex.

• Compound operator.

• is by default interpreted as NotExists[x, y].

• See Section 3.10.4.

• See also: \[Exists] , \[ForAll] .

THIS IS DOCUMENTATION FOR AN OBSOLETE PRODUCT.
SEE THE DOCUMENTATION CENTER FOR THE LATEST INFORMATION.

© 2013 About Wolfram