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According to the Wikipedia "In mathematics, the word null (from German: null meaning "zero", which is from Latin: nullus meaning "none")[1] means of or related
by dangom 10y ago
According to the Wikipedia
"In mathematics, the word null (from German: null meaning "zero", which is from Latin: nullus meaning "none")[1] means of or related to having zero members in a set or a value of zero. Sometimes the symbol ∅ is used to distinguish "null" from 0."
I guess symbols only exist in a context, anyway, right? They aren't immutable beings with a true meaning.
Prettifying an Emacs buffer does not change the text written to a file, so the user can also have a context for himself independent of whether he is collaborating with someone else or not.
- lou1306 10y agoI would have used the "up tack" [^1] (or \bot for LaTeX users) to signify "null". Empty set could lead to ambiguities imho. [^1]: https://en.wikipedia.org/wiki/Up_tack https://en.wikipedia.org/wiki/Up_tack
- dangom 10y agoI agree with you. Specially because ∅ looks a lot like crossed 0, depending on your font. My point is that symbols only have meaning for those who see them. With Emacs pretty-mode, symbols are substituted visually and not ever saved to file.