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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.
1 Answer. Sorted by: 6. ≈ ≈ is used as the mathematical "approximately" symbol − − this means Δx Δ x has approximately the same value as λsin α λ sin α. However, ∼ ∼ is used a proportionality symbol, so there is some factor tacked onto h mc sin α h m c sin α, which may be 1000 1000 or 2 2 or something else. Share.
3 Answers. Usually one writes 1 17 ≈ 0.0588. 1 17 ≈ 0.0588. One can write 1 17 = 0.0588 …, 1 17 = 0.0588 …, meaning there are further digits after the 8. 8. I would use the notation “ = 0.0588 … '' “ = 0.0588 … '' only if that last explicit digit is 8 8 and not if it's rounded upward to 8, 8, whereas I would use “ ≈ 0.0588 ...
To type a cross symbol ( ), you can use a keyboard shortcut if available for your system or application. For example, on Windows, you can press and hold the Alt key while typing 0134 on the ...
Lets add some more.... ∼ ∼ is "similar to" but it can also appears in equivalence relations. I suppose similarity is an equivalence relation. ≡ ≡ is "equivalent to" and appears in regularly in modular arithmetic. ≈ ≈ is aproximately. ≅ ≅ is congruence or isomorphism. And of course = = is equality. – Doug M.
Best Answer. On middle row there is ASDFGHJKL;'#. so hold down Shift and type '. and @ symbol appears. Wiki User. ∙ 10y ago. More answers. Wiki User. ∙ 15y ago.
The three dot symbol ∴ ∴ means therefore. Less common, ∵ ∵ means because. Assume n> B − 1 n> B − 1. By a well-known property of >> (add 1 1 to both sides), ∴ n + 1> B. ∴ n + 1> B. For any potential upper bound B B of N, N, by the Archimedean property there is n ∈ N n ∈ N such that n ≥ B> B − 1. n ≥ B> B − 1. But then ...
Less but approximately only less than ≈<. This is the symbology that I like and use. And FWIW, I define these symbols as follows: '≈>'means "almost equal to and greater than", whereas '≈<' means "almost equal to and less than". For example, "A ≈> B" says "A is almost equal to and greater than B".
What is the keyboard shortcut to type a diamond symbol on mac? Updated: 10/4/2023. Wiki User. ∙ 10y ago. Study now. See answer (1) Best Answer. Copy. alt 4. Wiki User. ∙ 13y ago. This answer is:
To indicate approximate equality, one can use ≃, ≅, ~, ♎, or ≒. I need to indicate an approximate inequality. Specifically, I know A is greater than a quantity of approximately B. Is there a way to