NotExists 
✖
NotExists
Details
- NotExists[x,y] has no built-in meaning.
is by default interpreted as NotExists[x,y].
can be entered as \[NotExists] or 
!ex
.
Examples
Basic Examples (1)Summary of the most common use cases
In[1]:=1
✖
https://wolfram.com/xid/0j465ki6-drojry
Out[1]=1
Wolfram Research (1996), NotExists, Wolfram Language function, https://reference.wolfram.com/language/ref/NotExists.html.
✖
Wolfram Research (1996), NotExists, Wolfram Language function, https://reference.wolfram.com/language/ref/NotExists.html.Text
Wolfram Research (1996), NotExists, Wolfram Language function, https://reference.wolfram.com/language/ref/NotExists.html.
✖
Wolfram Research (1996), NotExists, Wolfram Language function, https://reference.wolfram.com/language/ref/NotExists.html.CMS
Wolfram Language. 1996. "NotExists." Wolfram Language & System Documentation Center. Wolfram Research. https://reference.wolfram.com/language/ref/NotExists.html.
✖
Wolfram Language. 1996. "NotExists." Wolfram Language & System Documentation Center. Wolfram Research. https://reference.wolfram.com/language/ref/NotExists.html.APA
Wolfram Language. (1996). NotExists. Wolfram Language & System Documentation Center. Retrieved from https://reference.wolfram.com/language/ref/NotExists.html
✖
Wolfram Language. (1996). NotExists. Wolfram Language & System Documentation Center. Retrieved from https://reference.wolfram.com/language/ref/NotExists.htmlBibTeX
✖
@misc{reference.wolfram_2025_notexists, author="Wolfram Research", title="{NotExists}", year="1996", howpublished="\url{https://reference.wolfram.com/language/ref/NotExists.html}", note=[Accessed: 20-June-2025
]}BibLaTeX
✖
@online{reference.wolfram_2025_notexists, organization={Wolfram Research}, title={NotExists}, year={1996}, url={https://reference.wolfram.com/language/ref/NotExists.html}, note=[Accessed: 20-June-2025
]}