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The rule about hyphens is clear here

https://www.quora.com/Does-the-phrase-state-of-the-art-have-hyphens-Why

but it's contradicted here (e.g. state of the art)

https://www.grammarbook.com/punctuation/hyphens.asp

Which source is more reliable?


In the following example:

"Each half-edge is associated with a single face."

https://en.wikipedia.org/wiki/Doubly_connected_edge_list

should there be a hyphen in half edge?

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Zohar LeviWhich source is more reliable?

It's a matter of opinion.

Zohar Levishould there be a hyphen in half edge?

Yes, I think it helps the reader.

Comments  
Students: We have free audio pronunciation exercises.

Neither quora nor Wikipedia is a good source for style rules. Consult a real style manual.

In your case, it seems right to make one word out of half-edge by hyphenating.

Neil offered


https://write.co.nz/hyphens-how-to-use-them/

Style manual - any specific recommendation?

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