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. At least, …

Mar 18, 2011 · It's curious --and unfortunate-- that the symbol for emphasis became the symbol for negation. Granted, ASCII isn't the richest glyph set, and coders needed something, but why settle on …

Jan 25, 2021 · This is probably the stupidest thing I've ever needed help with, but I've read you can format sign text to different colours using § codes but I cannot for the life of me figure out how to put …

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 …

There is a common thread running through many of the mysteries and hints in the series—the mysterious symbol, (alleged) astronomical symbols, cannibalism, and the sign of the bird and water …

Jun 23, 2015 · $\\mathbb Q$ is used to represent rational numbers. $\\mathbb R$ is used to represent reals. Is there a symbol or convention that represents irrationals. Possibly $\\mathbb R - \\mathbb Q$?

Aug 31, 2019 · Either \propto or \varpropto seems to give the correct symbol. TeX often uses "var" to indicate a variation of a symbol (for example \epsilon $\epsilon$ vs \varepsilon $\varepsilon$; \theta …

Stumped on a tech problem? Ask the community and try to help others with their problems as well. Note: Reddit is dying due to terrible leadership from CEO /u/spez. Please use our Discord server instead of …

The symbol is half a candle stick because Gandalf is a lesser god (Maiar). Gandalf shines like a beacon of hope (or like a lit candle stick) just like a diamond (carbon) shines in the rising sun over middle earth.

Aug 3, 2015 · Here's another symbol I've seen for the primes: $\mathcal {P}$. I think it was in an ArXiV paper, I doubt it was in an actual book from a library. Don't use $\mathfrak {P}$, though, that's more …