
notation - What does "∈" mean? - Mathematics Stack Exchange
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.
logic - Is there a mathematical symbol for "if" or "when ...
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?
Mathematical symbol for "and" - Mathematics Stack Exchange
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 word …
Difference between "≈", "≃", and "≅" - Mathematics Stack Exchange
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. …
Math Symbol for "Where" - Mathematics Stack Exchange
Math Symbol for "Where" Ask Question Asked 10 years, 7 months ago Modified 3 years, 3 months ago
What does the math symbol - Mathematics Stack Exchange
Aug 31, 2019 · 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 …
Three dot ∴ symbol meaning - Mathematics Stack Exchange
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 …
Is there any symbol for "undefined"? - Mathematics Stack Exchange
Jan 31, 2015 · For example we have $\frac {0} {0}$ which is undefined or we have a multiplication of $2\times2$ and $3\times3$ matrices which is also undefined. Is there any symbol for …
notation - Symbol for 'When ...' - Mathematics Stack Exchange
Nov 3, 2014 · Symbol for 'When ...' Ask Question Asked 11 years, 2 months ago Modified 11 years, 2 months ago
notation - What is the mathematical symbol for "nothing"?
Jun 12, 2020 · The question is, what should be the right symbol to denote a "null value"/"nothing". I do not want to use the symbol ∅ ∅ since it represents an empty "set". I do not want to use …