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. …

2015年6月23日 · $\\mathbb Q$ is used to represent rational numbers. $\\mathbb R$ is used to represent reals. Is there a symbol or convention that represents irrationals. Possibly $\\mathbb …

2014年6月25日 · 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.

2020年11月13日 · 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?

2015年9月3日 · 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, § …

What's the most used symbol for "defined to be equal to", at least in your experience (and I'm sure there are a lot of experienced people here)? Also, which one do you think is the "the most right" …

2023年5月1日 · I expect that there are dozens or even hundreds of different ways that authors, teachers, and more have written the phrase "such that" symbolically. I remember one of my …

2022年9月26日 · Like the title anybody know or have a list of alt code for gd&t symbol to use in excel ?

So, in the definition of what is a square root, x−−√ x are all numbers y y such that y × y = x y × y = x. are there any logical mathematical symbols so that the above definition can be written using …

2019年8月31日 · In this case, drawing the mysterious symbol gives Either \propto or \varpropto seems to give the correct symbol. TeX often uses "var" to indicate a variation of a symbol (for …