Mar 18, 2011 · I have seen variants of these used by people who predate widespread knowledge of computer programming. It would be interesting to know the earliest uses of a special symbol …

Sep 26, 2022 · Lastly, you may be able to copy (Ctrl+c) the symbol from a web browser if you come upon a page that has it as text format. you simply paste (ctrl+v) the symbol into excel. I …

The symbol ≅ is used for isomorphism of objects of a category, and in particular for isomorphism of categories (which are objects of CAT). The symbol ≃ is used for equivalence of categories. …

Jan 25, 2021 · If I PASTE the § symbol with Ctrl+V, THEN press Alt+0167, the window will accept my next input as though it's a modifier for the § symbol despite not actually showing the …

Jun 25, 2014 · Another possible notation for the same relation is {\displaystyle A\ni x,} A\ni x, meaning "A contains x", though it is used less often. The negation of set membership is …

Sep 7, 2016 · Note, IF you do such a thing, make SURE that the expression and it's symbol is LOGICAL, WELL NAMED, and EXPLAINED, and post the symbol with name and explanation …

Dec 22, 2020 · This has caused the symbol "$\subset$" to become ambiguous, and authors tend to want to avoid it. To describe the relation "proper subset", they instead use the symbol …

Oct 3, 2018 · A comment points out that if the author uses two different symbols that implies the author wants the symbols to mean two different things. And by convention I) there is no …

Feb 16, 2020 · From Google: On most keyboards the at sign (@) is created by pressing Shift + 2. If your keyboard has more than one symbol on the number 2 key, press Ctrl + Shift + 2 to type …

May 2, 2015 · The symbol $$ \frac{d}{dx} $$ you can consider as an operator. You can apply this operator to a ...