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This work deals with the definability problem by quantifier-free first-order formulas over a finite algebraic structure. We show the problem to be coNP-complete and present two decision algorithms based on a semantical characterization of…

Logic in Computer Science · Computer Science 2023-03-31 Miguel Campercholi , Mauricio Tellechea , Pablo Ventura

We compare closed and rigid monoidal categories. Closedness is defined by the tensor product having a right adjoint: the internal hom functor. Rigidity, on the other hand, generalises the duality of finite-dimensional vector spaces. In the…

Category Theory · Mathematics 2026-02-06 Sebastian Halbig , Tony Zorman

We describe the layer of quantifier alternation depth at most one of the quantifier completion of a Boolean doctrine over a small category. This amounts to a doctrinal version of Herbrand's theorem for formulas with quantifier alternation…

Logic · Mathematics 2025-10-31 Marco Abbadini , Francesca Guffanti

Let $\mathcal{P}(\Sigma^*)$ be the semiring of languages, and consider its subset $\mathcal{P}(\Sigma)$. In this paper we define the language recognized by a weighted automaton over $\mathcal{P}(\Sigma)$ and a one-letter alphabet.…

Formal Languages and Automata Theory · Computer Science 2010-07-27 Edoardo Carta-Gerardino , Parisa Babaali

We propose a graphical language that accommodates two monoidal structures: a multiplicative one for pairing and an additional one for branching. In this colored PROP, whether wires in parallel are linked through the multiplicative structure…

Logic in Computer Science · Computer Science 2025-12-29 Kostia Chardonnet , Marc de Visme , Benoît Valiron , Renaud Vilmart

To advance models of multimodal context, we introduce a simple yet powerful neural architecture for data that combines vision and natural language. The "Bounding Boxes in Text Transformer" (B2T2) also leverages referential information…

Computation and Language · Computer Science 2019-11-05 Chris Alberti , Jeffrey Ling , Michael Collins , David Reitter

The category $_{A}\mathbb{S}_{A}$ of bisemimodules over a semialgebra $A,$ with the so called Takahashi's tensor product $-\boxtimes_{A}-,$ is semimonoidal but not monoidal. Although not a unit in $_{A}\mathbb{S}%_{A},$ the base semialgebra…

Category Theory · Mathematics 2013-01-25 Jawad Abuhlail

We study modules over stacks of deformation quantization algebroids on complex Poisson manifolds. We prove finiteness and duality theorems in the relative case and construct the Hochschild class of coherent modules. We prove that this class…

Algebraic Geometry · Mathematics 2015-03-13 Masaki Kashiwara , Pierre Schapira

A generalization of numeration system in which the set N of the natural numbers is recognizable by finite automata can be obtained by describing a lexicographically ordered infinite regular language. Here we show that if P belonging to Q[x]…

Computational Complexity · Computer Science 2007-05-23 Michel Rigo

The notion of orbit finite data monoid was recently introduced by Bojanczyk as an algebraic object for defining recognizable languages of data words. Following Buchi's approach, we introduce a variant of monadic second-order logic with data…

Formal Languages and Automata Theory · Computer Science 2017-01-11 Gabriele Puppis , Thomas Colcombet , Clemens Ley

We extend the usual internal logic of a (pre)topos to a more general interpretation, called the stack semantics, which allows for "unbounded" quantifiers ranging over the class of objects of the topos. Using well-founded relations inside…

Category Theory · Mathematics 2010-04-23 Michael A. Shulman

The purpose of this article is twofold. Firstly, we use the next-token probabilities given by a language model to explicitly define a category of texts in natural language enriched over the unit interval, in the sense of Bradley, Terilla,…

Category Theory · Mathematics 2025-11-26 Tai-Danae Bradley , Juan Pablo Vigneaux

We provide base change theorems, projection formulae and Verdier duality for both cohomology and homology in the context of finite topological spaces

Algebraic Topology · Mathematics 2021-02-09 Carmona Sánchez , V. , Maestro Pérez , C. , Sancho de Salas , F. , Torres Sancho , J. F

We describe a generic construction of non-wellfounded syntax involving variable binding and its monadic substitution operation. Our construction of the syntax and its substitution takes place in category theory, notably by using monoidal…

Programming Languages · Computer Science 2024-05-08 Ralph Matthes , Kobe Wullaert , Benedikt Ahrens

Most current approaches to metaphor identification use restricted linguistic contexts, e.g. by considering only a verb's arguments or the sentence containing a phrase. Inspired by pragmatic accounts of metaphor, we argue that broader…

Computation and Language · Computer Science 2019-04-11 Jesse Mu , Helen Yannakoudakis , Ekaterina Shutova

We study the dg-Lie algebra f_n generated by the coefficients of the universal translation invariant flat dg-connection on the n-dimensional affine space. We describe its "semiabelianization" (in particular, the universal quotient which is…

Differential Geometry · Mathematics 2015-02-24 Mikhail Kapranov

We introduce an extension of the propositional calculus to include abstracts of predicates and quantifiers, employing a single rule along with a novel comprehension schema and a principle of extensionality, which are substituted for the…

Logic · Mathematics 2010-03-23 Lucius T. Schoenbaum

Following the classical approach of Birkhoff, we suggest an enriched version of enriched universal algebra. Given a suitable base of enrichment $\mathcal V$, we define a language $\mathbb L$ to be a collection of $(X,Y)$-ary function…

Category Theory · Mathematics 2026-03-04 Jiří Rosický , Giacomo Tendas

Word vectors require significant amounts of memory and storage, posing issues to resource limited devices like mobile phones and GPUs. We show that high quality quantized word vectors using 1-2 bits per parameter can be learned by…

Computation and Language · Computer Science 2018-04-03 Maximilian Lam

Comprehending the rich semantics in an image and ordering them in linguistic order are essential to compose a visually-grounded and linguistically coherent description for image captioning. Modern techniques commonly capitalize on a…

Computer Vision and Pattern Recognition · Computer Science 2022-06-15 Yehao Li , Yingwei Pan , Ting Yao , Tao Mei