🌐EnglishEnglishDeutschEspañolFrançaisItalianoNederlandsPolskiРусский中文EntityQ2027347· pop 9· linked from 197 articlesoptional stopping theoremmartingale's expected value at a stopping time equals its initial expected valueAvailable in 9 languagesEspañolFrançaisDeutschРусскийItalianoHebrewPolskiUkrainianvia Wikidata sitelinks · CC0ConnectionsmartingaleEntityInternational Standard Book NumberEntityCategoriesMartingale theoryTheorems in probability theoryTheorems in statistics