# Symbols talk:Logical Operators

Is $\sim$ actually "deprecated" as a symbol for "not" or a genuine "alternative" to the $\lnot$ symbol?
My belief is that $\lnot$ is preferred nowadays as its meaning is unequivocal, whereas $\sim$ has all sorts of other uses which could cause confusion, which is why I relegated it to the "deprecated" section.
Sidestepping the issue of whether $\sim$ is deprecated or not, it makes more sense to have symbol to use for each operator. In this case, $\lnot$ is unambiguous (personally, I see $\sim$ and think geometric similarity, as belied by the LaTeX name of the symbol, \sim), and hence it probably makes more sense to keep consistent with what we have. That said, if you have some particular current and respected source that you can cite for use of $\sim$, then that would indicate that it isn't deprecated and should be included, so please let us know what that source is. --Cynic (talk) 15:01, 7 May 2009 (UTC)