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波斯特对应问题(英语:Post correspondence problem)是美国数学家埃米尔·波斯特(Emil Post)于1946年提出的一个不可判定问题。
The Post correspondence problem is an undecidable decision problem that was introduced by Emil Post in 1946. Because it is simpler than the halting problem and the Entscheidungsproblem it is often used in proofs of undecidability.
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