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title = "en dash"
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In TeX, two hyphens (--) become an en dash (–).
Use an en dash, not a hyphen, in numeric ranges like 4–10.
Also use an en dash between words that are balanced with each other but not part of a compound word. Common examples include hardware–software, producer–consumer, and things named after multiple people, like Curry–Howard or Lucas–Kanade.