Symbols:E/Identity Element
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Identity Element
- $e$
Denotes the identity element in a general algebraic structure.
If $e$ is the identity of the structure $\struct {S, \circ}$, then a subscript is often used: $e_S$.
This is particularly common when more than one structure is under discussion.
The $\LaTeX$ code for \(e_S\) is e_S
.
Sources
- 1989: Ephraim J. Borowski and Jonathan M. Borwein: Dictionary of Mathematics ... (previous) ... (next): e: 2.
- 2014: Christopher Clapham and James Nicholson: The Concise Oxford Dictionary of Mathematics (5th ed.) ... (previous) ... (next): e (in group theory)
- 2021: Richard Earl and James Nicholson: The Concise Oxford Dictionary of Mathematics (6th ed.) ... (previous) ... (next): e (in group theory)