Normal form of derivations in the nonassociative and commutative lambek calculus with product

Mathematical Logic Quarterly 39 (1):103-114 (1993)
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Abstract

We show that derivations in the nonassociative and commutative Lambek calculus with product can be transformed to a normal form as it is the case with derivations in noncommutative calculi. As an application we obtain that the class of languages generated by categorial grammars based on the nonassociative and commutative Lambek calculus with product is included in the class of CF-languages. MSC: 68Q50, 03D15, 03B65.

Other Versions

reprint Kandulski, Maciej (2006) "Normal form of derivations in the nonassociative and commutative lambek calculus with product". Mathematical Logic Quarterly 39(1):103-114

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