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We present a complete theoretical and empirical framework establishing feedforward neural networks as universal finite-state machines (N-FSMs). Our results prove that finite-depth ReLU and threshold networks can exactly simulate…

Machine Learning · Computer Science 2025-05-30 Sahil Rajesh Dhayalkar

Bilattice-based triangle provides an elegant algebraic structure for reasoning with vague and uncertain information. But the truth and knowledge ordering of intervals in bilattice-based triangle can not handle repetitive belief revisions…

Artificial Intelligence · Computer Science 2020-11-24 Kumar Sankar Ray , Sandip Paul , Diganta Saha

We introduce tree-width for first order formulae \phi, fotw(\phi). We show that computing fotw is fixed-parameter tractable with parameter fotw. Moreover, we show that on classes of formulae of bounded fotw, model checking is fixed…

Logic in Computer Science · Computer Science 2019-03-14 Isolde Adler , Mark Weyer

We extend classical Propositional Logic (PL) by adding a new primitive binary connective $\varphi|\psi$, intended to represent the "superposition" of sentences $\varphi$ and $\psi$, an operation motivated by the corresponding notion of…

Logic · Mathematics 2023-03-28 Athanassios Tzouvaras

We introduce a taxonomy for partially coherent optical fields spanning multiple degrees of freedom (DoFs) based on the rank of the associated coherence matrix (the number of non-zero eigenvalues). When DoFs comprise two spatial modes and…

In this paper, we give two proofs of the wellfoundedness of recursive notation systems for $\Pi_N$-reflecting ordinals. One is based on $\Pi_{N-1}^0$-inductive definitions, and the other is based on distinguished classes.

Logic · Mathematics 2013-04-11 Toshiyasu Arai

We develop a logic which enables reasoning about single steps of non-deterministic parallel Abstract State Machines (ASMs). Our logic builds upon the unifying logic introduced by Nanchen and St\"ark for reasoning about hierarchical…

Logic in Computer Science · Computer Science 2017-06-01 Flavio Ferrarotti , Klaus-Dieter Schewe , Loredana Tec , Qing Wang

We prove, for stably computably enumerable formal systems, direct analogues of the first and second incompleteness theorems of G\"odel. A typical stably computably enumerable set is the set of Diophantine equations with no integer…

Logic · Mathematics 2024-12-19 Yasha Savelyev

A L\'evy process on $R^d$ with distribution $\mu$ at time 1 is denoted by $X^{(\mu)}=\{X_t^{(\mu)}\}$. If the improper stochastic integral $\int_0^{\infty-} f(s)dX_s^{(\mu)}$ of $f$ with respect to $X^{(\mu)}$ is definable, its distribution…

Probability · Mathematics 2007-05-23 Ken-iti Sato

It is well-known that extending the Hilbert axiomatic system for first-order intuitionistic logic with an exclusion operator, that is dual to implication, collapses the domains of models into a constant domain. This makes it an interesting…

Logic in Computer Science · Computer Science 2024-11-20 Tim S. Lyon , Ian Shillito , Alwen Tiu

Federated learning (FL) is a general principle for decentralized clients to train a server model collectively without sharing local data. FL is a promising framework with practical applications, but its standard training paradigm requires…

Machine Learning · Computer Science 2024-07-23 Haozhe Feng , Tianyu Pang , Chao Du , Wei Chen , Shuicheng Yan , Min Lin

Logical formalisms such as first-order logic (FO) and fixpoint logic (FP) are well suited to express in a declarative manner fundamental graph functionalities required in distributed systems. We show that these logics constitute good…

Logic in Computer Science · Computer Science 2009-04-22 Stephane Grumbach , Fang Wang , Zhilin Wu

Full Intuitionistic Linear Logic (FILL) is multiplicative intuitionistic linear logic extended with par. Its proof theory has been notoriously difficult to get right, and existing sequent calculi all involve inference rules with complex…

Logic in Computer Science · Computer Science 2013-07-19 Ranald Clouston , Jeremy Dawson , Rajeev Gore , Alwen Tiu

Evaluating a Boolean conjunctive query Q against a guarded first-order theory F is equivalent to checking whether "F and not Q" is unsatisfiable. This problem is relevant to the areas of database theory and description logic. Since Q may…

Logic in Computer Science · Computer Science 2019-03-14 Vince Bárány , Georg Gottlob , Martin Otto

Various AI models are increasingly being considered as part of clinical decision-support tools. However, the trustworthiness of such models is rarely considered. Clinicians are more likely to use a model if they can understand and trust its…

Artificial Intelligence · Computer Science 2020-03-09 Evangelia Kyrimi , Somayyeh Mossadegh , Nigel Tai , William Marsh

In heap-based languages, knowing that a variable x points to an acyclic data structure is useful for analyzing termination: this information guarantees that the depth of the data structure to which x points is greater than the depth of the…

Programming Languages · Computer Science 2014-05-20 Damiano Zanardini , Samir Genaim

The aim of this work is to compute the entanglement entropy of real and virtual particles by rewriting the generating functional of $\phi ^{4}$ theory as a mean value between states and observables defined through the correlation functions.…

Quantum Physics · Physics 2015-04-07 Juan Sebastian Ardenghi

Classical complexity theory measures the cost of computing a function, but many computational tasks require committing to one valid output among several. We introduce determination depth -- the minimum number of sequential layers of…

Computational Complexity · Computer Science 2026-04-08 Joseph M. Hellerstein

We introduce the logic FOCN(P) which extends first-order logic by counting and by numerical predicates from a set P, and which can be viewed as a natural generalisation of various counting logics that have been studied in the literature. We…

Logic in Computer Science · Computer Science 2017-03-06 Dietrich Kuske , Nicole Schweikardt

The main aim of this paper is to introduce the logics of evidence and truth LETK+ and LETF+ together with a sound, complete, and decidable six-valued deterministic semantics for them. These logics extend the logics LETK and LETF- with rules…

Logic · Mathematics 2023-06-12 Marcelo E. Coniglio , Abilio Rodrigues