The usual symbol for normal subgroup is a triangle with a line under it

How do you get this symbol in Latex - ie how do you write

H is a normal subgroup of G in the usual symbols

Peter

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- November 25th 2011, 10:41 PMBernhardH is a normal subgroup of G
The usual symbol for normal subgroup is a triangle with a line under it

How do you get this symbol in Latex - ie how do you write

H is a normal subgroup of G in the usual symbols

Peter - November 26th 2011, 12:19 AMCaptainBlackRe: H is a normal subgroup of G
- November 26th 2011, 12:20 AMOpalgRe: H is a normal subgroup of G