1. Not equal in latex

How do I write "not equal" to in latex?

2. Originally Posted by acevipa
How do I write "not equal" to in latex?
\ne gives $\ne$.

3. More Generally...

You can do "\not=". The not operator can work on things like subsets and element of. See here:

"\not\in" looks like $\not\in$, and "\not\subset" looks like $\not\subset$.

4. Originally Posted by Opalg
\ne gives $\ne$.
I've been typing \neq and wasting a whole letter every time! Such gross inefficiency. $\neq$

5. Originally Posted by undefined
I've been typing \neq and wasting a whole letter every time! Such gross inefficiency. $\neq$
Same !