🌐EnglishEnglishDeutschFrançaisItalianoPolskiSvenskaРусский한국어中文日本語EntityQ318754· pop 15· linked from 25 articlessummation by partsAlso known as Abel's lemma, Abel transformationtheorem to simplify sums of products of sequencesAvailable in 15 languagesFrançaisDeutsch中文日本語РусскийItalianoBelarusianCzechPiedmontesePolskiConnectionsfinite differenceEntitysequenceEntityCategoriesLemmas in algebraReal analysisSummability methods