Latex code for the "not equivalent" symbol

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SUMMARY

The discussion centers on obtaining the LaTeX code for the "not equivalent" symbol, specifically in the context of Rotman's Abstract Algebra, Proposition 1.58. The correct LaTeX syntax is provided as r\not\equiv r'\pmod{m}, which renders the desired symbol accurately. Participants reference additional resources, including StackExchange, for further clarification on LaTeX usage.

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I have just posted on the Linear and Abstract Algebra forum ... and the post needs a "not equivalent" symbol as shown in Rotman's Proposition 1.58 part (ii) see below ...

Can someone please help with the latex code for this symbol?

PeterProposition 1,58 in Rotman's Abstract Algebra reads as follows:View attachment 4525
https://www.physicsforums.com/attachments/4526See Part (ii) of the above for the desired "not equivalent" symbol ...

Peter
 
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[m]r\not\equiv r'\pmod{m}[/m] gives $r\not\equiv r'\pmod{m}$. For slightly more information, see StackExchange.
 

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