How do you write the -- in Hom(--,B) ?

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quasar987
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TL;DR
I want to know how to write the dash in Hom(--,B)
Hello!

Here's a piece of a print screen I did on Wikipedia's page on "Hom functor":

1660438697202.png


Does anybody knows how to do that dash that's longer than a mere minus sign?
 

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What is wrong with \operatorname{Hom}(-,X) ?
##\operatorname{Hom}(-,X)##
 
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fresh_42 said:
What is wrong with \operatorname{Hom}(-,X) ?
##\operatorname{Hom}(-,X)##
Not a thing! I was certain that I had tried that in Overleaf and it didn't look good. But now I tried it and it looks fine.
 

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