I'm looking at the following symbol, between W and X, in an old PDF file:
and would like to use it in Math mode in my document, but can't figure it out which symbol it is. Is it a standard Math symbol? Any suggestions for symbols that look similar to it?
The PDF file is here: http://dl.acm.org/citation.cfm?id=74833, though it's not open access.
The title of the paper is: "Scannerless NSLR(1) parsing of programming languages"
Best Answer
Never seen such a symbol, but you can define it; choose a better name.
Notes. I use the fact that TeX doesn't add space between consecutive relation symbols;
\joinrel
is a little negative space that counts as a relation symbol. Thus we get two superimposing minus signs (just like what's done for longer arrows). With\centernot
we place the\not
symbol exactly in the middle.A different version using
/
instead of\not
, so also\backslash
can be employed instead.