I assume you’re referring to the comma before but . I would use it, though it’s not mandatory. A semicolon wouldn’t be appropriate.
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Aspara GusI assume you’re referring to the comma before but.I would use it, though it’s not mandatory. A semicolon wouldn’t be appropriate.Yes, I was. I can see that now. There is an appositive: "..., depending on the kind of language involved,..." that's why there had to be a comma after "but".