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, …

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.

Mar 7, 2019 · 13 I have found some pretty complete lists (I think) of mathematical symbols here and here, but I don't see a symbol for the word "and" on either list. A person could easily just write the …

Aug 31, 2019 · What does the math symbol $\propto$ mean? Ask Question Asked 6 years, 3 months ago Modified 6 years, 3 months ago

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 …

Nov 3, 2014 · Symbol for 'When ...' Ask Question Asked 11 years, 1 month ago Modified 11 years, 1 month ago

Jan 5, 2019 · For instance, here's definition 16 of the Ethereum Yellow Paper: Does $\\wedge$ simply mean a concatenation of statements? Like the logic gate AND?

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 …

what does ∇ (upside down triangle) symbol mean in this problem Ask Question Asked 15 years, 3 months ago Modified 4 years, 8 months ago

Dec 13, 2016 · An unsophisticated question from a neophyte: Given the numbers: $1,2,3,4,5$ What is the symbol for the range of the numbers? i.e. the lowest-highest number in the set. For example, the …