To be fair, there are lot of math symbols out there. http://mirrors.dotsrc.org/ctan/info/symbols/comprehensive/symbols-a4.pdf http://mirrors.dotsrc.org/ctan/in

To be fair, there are lot of math symbols out there. http://mirrors.dotsrc.org/ctan/info/symbols/comprehensive/symbols-a4.pdf http://mirrors.dotsrc.org/ctan/info/symbols/comprehensive/sy... There are lots of examples of the lightning bolt in there. In fact, under ulsy Contradiction symbols, there are four variants. I also noticed the exact symbol being discussed is listed under "Angles".