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On context-free languages and push-down automata

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Abstract

This note describes a special type of one-way, one-tape automata in the sense of Rabin and Scott that idealizes some of the elementary formal features used in the so-called "push-down store" programming techniques. It is verified that the sets of words accepted by these automata form a proper subset of the family of the unambiguous context-free languages of Chomsky's and that this property admits a weak converse. © 1963 Academic Press Inc.

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01 Jan 1963

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Information and Control

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