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- 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 At least, this is the convention used in this book and by most category theorists, although it is far from universal in mathematics at large
- notation - What does the math symbol $\propto$ mean? - Mathematics . . .
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 $\theta$ vs \vartheta $\vartheta$), so "propto" seems like a reasonable guess as to what this symbol should be called
- notation - What does ∈ mean? - Mathematics Stack Exchange
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
- notation - What is the symbol ≙ most commonly used for in a . . .
What is the symbol ≙ most commonly used for in a mathematical or math-related context? LaTeX produces the symbol with \hateq The symbol has Unicode codepoint U+2259 The respective Unicode code c
- What does the symbol on Gaaras forehead mean? - Reddit
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 the form of a bloody scar Or he just wanted a cool tattoo Reply reply more repliesMore replies more replyMore repliesMore replies
- notation - Is there an accepted symbol for irrational numbers . . .
$\\mathbb Q$ is used to represent rational numbers $\\mathbb R$ is used to represent reals Is there a symbol or convention that represents irrationals Possibly $\\mathbb R - \\mathbb Q$?
- What is the symbol to refer to the set of whole numbers
Even though there appears to be some confusion as to exactly What are the "whole numbers"?, my question is what is the symbol to represent the set $0, 1, 2, \ldots $
- Yellowjackets Explained: The Mystery of the Symbol and How the . . . - Reddit
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 symbolism in Episode 8 This thread also runs through questions with seemingly obvious answers, especially, “Why is the series called Yellowjackets?” It all boils down to trigonometry, occultations
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