Learn Swedish: Forskaren presenterar resultatet, och drar en slutsats därav. - The researcher presents the result, and draws a conclusion from it.

Därav is a formal pronominal adverb made of där (there) and av (of/from). In academic or formal writing, it replaces a preposition followed by a pronoun. Here, it replaces av det (from it), referring back to resultatet (the result).

Could I just say av det instead of därav at the end of the sentence?

Absolutely. In everyday spoken Swedish or casual writing, you would almost certainly say och drar en slutsats av det. Words starting with där-, like därav, sound highly formal and are mostly reserved for academic texts, reports, or legal documents.

Does Swedish use the same verb as English for drawing a conclusion?

Yes, Swedish uses the verb att dra (to pull or draw). The complete phrase is att dra en slutsats, which matches the English idiom perfectly.

Why is there a comma before och even though the subject isn't repeated in the second clause?

Strictly speaking, traditional Swedish writing rules often advise against using a comma before och when the subject is dropped in the second clause (the subject forskaren is implied before drar). However, in heavier academic writing, authors sometimes include one to create a deliberate pause, separating the premise from the conclusion.