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An overview of mathematical-logical approaches in formalizing natural languages
Crossposted on Mathematics SE
I am an undergraduate mathematics student with a keen interest in pursuing research in the formalization of natural languages (from a more mathematical-logical approach),...
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The set of closed untyped $\lambda$-terms is not context-free?
The set of untyped $\lambda$-terms is obviously context-free. But, according to Barendregt's paper Discriminating coded lambda terms (six lines before Theorem 1.5), the set of closed untyped $\lambda$...