Vladimir Yanovski, Israel A. Wagner, et al.
Ann. Math. Artif. Intell.
Paper
Characterizing derivation trees of context-free grammars through a generalization of finite automata theory
Abstract
The recognizable sets of value trees (pseudoterms) are shown to be exactly projections of sets of derivation trees of (extended) context-free grammars. © 1968 Academic Press Inc.
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