In mathematical notation, what are the usage differences between the various approximately-equal signs "≈", "≃", and "≅"? The Unicode standard lists all of them inside the Mathematical Operators B...

Dec 22, 2020 · I have encountered this when referencing subsets and vector subspaces. For example, T ⊊ span(S) should mean that T is smaller than span(S)--at least from what I've gathered. Is ⊊ a sort of …

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 …

May 6, 2015 · The meaning of various equality symbols Ask Question Asked 10 years, 7 months ago Modified 9 years, 7 months ago

I have read that an infinitesimal is very small, it is unthinkably small but I am not quite comfortable with with its applications. My first question is that is an infinitesimal a stationary value?...

Apr 28, 2012 · Edit: to simply say, what I really need is somehow formal or intuitive concept of topology and topological space that would allow me to grasp the meaning of topology and topological space. …

Feb 11, 2015 · At first English is not my native language if something is not perfectly formulated or described I'm sorry. Could somebody please tell me what the generally valid statement of this is? $$ …

Feb 19, 2015 · It's an abbreviation of quod erat demonstrandum, which is the Latin translation of a Greek phrase meaning "which had to be proven". To the ancient Greeks, a proof wasn't complete …

Jun 2, 2015 · 8 What is the usual meaning of having the symbol $\hat {}$ (i.e., a hat) over a vector name? What do vectors denoted by $\hat {\mathbf {u}}$ usually represent? For example, in this …

What is the meaning of $\exp (\,\cdot\,)$? Ask Question Asked 13 years, 7 months ago Modified 2 years, 7 months ago