Symbol "not exists"

[marcevm]

Is there a simple way of writing the symbol of "not exits"? Sorry, but I speak Spanish and it's difficult for me to find this in the forum.
Thanks

[bobharvey]

What symbol do you mean?
I am familiar with ∃ meaning "there exists", it is unicode character 8707 . You can enter it by typing 'exists' into the formula definition window. I have never come across a negated version of it.

{some browswers may not work with unicode - the symbol is a sans-serif 'E' printed in reverse (mirrored)}

There is an issue asking for the ability to overstrike characters:
http://qa.openoffice.org/issues/show_bug.cgi?id=31460
Until that happy day, you need to precede 'exists' with a negation operator that makes sense to you, or use line drawing tools to position a slash over the letter once you have returned to the enclosing document.

or try one of these:

[Robert Tucker]

Unicode U+2204 (8708):

www.fileformat.info/info/unicode/char/2204/index.htm

Fonts supporting it:

www.fileformat.info/info/unicode/char/2204/fontsupport.htm

[RGB]

You need to add that symbol to Math:
http://www.oooforum.org/forum/viewtopic.phtml?p=36104#36104
Only change "square" by "non exists"

[marcevm]

Thanks !!

I had Lucida Sans Unicode installed and it contained this symbol.

I added the symbol following the steps!!

[esperantisto]

FYI, DejaVu fonts also contain that symbol (and generally a good subset of math symbols).