# Manuals/calci/THEREDOESNOTEXIST

## THEREDOESNOTEXIST(SomeArray,SomeFunctions)

## Description

- THEREDOESNOTEXIST returns the result of applying the set of SomeFunctions to SomeArray, if results evaluate to false for the array when the functions are applied.
- This can also be represented by the notation ∄a("x<810") etc.

## Example

THEREDOESNOTEXIST(1..100,"x<=0")

gives true

a=1..100;

[∀a("x<810"),∃a("x<810"),∄a("x<810")]

true true false