Phrase guide

Sleeping Beauty problem

noun · 1 senses · updated from the 2026-07-25 local source snapshot

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1

noun

Meaning 1

A kind of puzzle in which whenever an ideally rational epistemic agent is awoken from sleep, it has no memory of whether it has been awoken before. Upon being told that it has been woken once or twice according to the toss of a coin, once if heads and twice if tails, it is asked its degree of belief for the coin having come up heads.

Definition source: English Wiktionary via Wiktextract

Qualifier: decision theory

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Synonyms: none provided

Antonyms: none provided

History

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