Hi, English isn’t my mother tongue so I was asking myself that question since I first encounted a w/… Back then I was like: “What tf does ‘w slash’ stand for?” And when I found out I was like “How, why, and is it any intuitive?” But I never dared to ask that until now
Tbf, it’s not just math. The .•. is used pretty often in philosophy (in writing out logical arguments), and I’ve seen it other places occasionally. Not saying you’re wrong, just adding unnecessary context lol