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. …

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 …

Mar 27, 2013 · As for $\Rightarrow$, this has been used as a sequent former in formal sequent calculi; but also seems often to be used (in some places, at any rate) as a metalinguistic …

What is the symbol ≙ most commonly used for in a mathematical or math-related context? LaTeX produces the symbol with \hateq. The symbol has Unicode codepoint U+2259. The respective …

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 …

Oct 13, 2015 · The N in question is $\cal{N}$ which is a calligraphic N that $\LaTeX$ produces. You can type it yourself by putting $\cal{N}$ in your question or answer[1].

Nov 3, 2014 · $\begingroup$ @DavidRicherby Although I myself tend to not overuse notation, I simply shown the most fitting "symbol" for the deduction that's been proposed by the OP. I'm …

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 …