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, …

I personally think that it's a symbol of his transition into a semi-delusional relationship with his "mother" (the sand). Only the sand loves him, so it wrote love, but the sand also hurts him, so it wrote love in …

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 $\\mathbb R - \\mathbb Q$?

Jun 25, 2014 · I have started seeing the "∈" symbol in math. What exactly does it mean? I have tried googling it but google takes the symbol out of the search.

Nov 13, 2020 · To introduce a logic premise, normally people use the words "if" or "iff" (if and only if). Is there a mathematical symbol with the same meaning?

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 …

Mar 3, 2019 · Whats the meaning of this symbol? Its a three dot symbol: ∴ I read a book, im could not find any definition of this symbol. This is about continuum property of the natural numbers and the …

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 …

Oct 18, 2016 · In set theory \mid or : is often used but I haven't really seen any logical symbol used for "such that" in other situations. But now that I think of it there is the \ni symbol used as "such that" in …

Sep 3, 2015 · How to type the § symbol I just wanted to help out some fellow 1Ls writing briefs or taking notes by showing how to quickly type the section symbol. If you are using windows, § can be made …