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The notion of non-deterministic logical matrix (where connectives are interpreted as multi-functions) preserves many good properties of traditional semantics based on logical matrices (where connectives are interpreted as functions) whilst…

计算机科学中的逻辑 · 计算机科学 2022-04-15 Pedro Filipe , Carlos Caleiro , Sérgio Marcelino

Inferential relations govern our concept use. In order to understand a concept it has to be located in a space of implications. There are different kinds of conditions for statements, i.e. that the conditions represent different kinds of…

人工智能 · 计算机科学 2020-07-07 Florian Richter

Human speakers have an extensive toolkit of ways to express themselves. In this paper, we engage with an idea largely absent from discussions of meaning in natural language understanding--namely, that the way something is expressed reflects…

计算与语言 · 计算机科学 2020-05-20 Sean Trott , Tiago Timponi Torrent , Nancy Chang , Nathan Schneider

We prove a theorem stating that any semantics can be encoded as a compositional semantics, which means that, essentially, the standard definition of compositionality is formally vacuous. We then show that when compositional semantics is…

cmp-lg · 计算机科学 2008-02-03 Wlodek Zadrozny

We develop a semantics for logics of imperfect information with respect to general models. Then we build a proof system and prove its soundness and completeness with respect to this semantics.

逻辑 · 数学 2012-01-30 Pietro Galliani

In two papers we noted that in common practice many algebraic constructions are defined only `up to isomorphism' rather than explicitly. We mentioned some questions raised by this fact, and we gave some partial answers. The present paper…

逻辑 · 数学 2007-05-23 Wilfrid Hodges , Saharon Shelah

It has been argued that reduction procedures are closely connected to the question about identity of proofs and that accepting certain reductions would lead to a trivialization of identity of proofs in the sense that every derivation of the…

计算机科学中的逻辑 · 计算机科学 2023-10-25 Sara Ayhan

We study the expressive power of fragments of inclusion and independence logic defined either by restricting the number of universal quantifiers or the arity of inclusion and independence atoms in formulas. Assuming the so-called lax…

逻辑 · 数学 2013-04-17 Pietro Galliani , Miika Hannula , Juha Kontinen

The Fourier transform is naturally defined for integrable functrions. Otherwise, it should be stipulated in which sense the Fourier transform is understood. We consider some class of radial and, generally saying, nonintegrable functions.…

funct-an · 数学 2008-02-03 Elijah Liflyand

In this paper we provide a theoretical analysis of counterfactual invariance. We present a variety of existing definitions, study how they relate to each other and what their graphical implications are. We then turn to the current major…

机器学习 · 计算机科学 2023-07-18 Jake Fawkes , Robin J. Evans

We contemplate the notion of ambiguity in mathematical discourse. We consider a general method of resolving ambiguity and semantic options for sustaining a resolution. The general discussion is applied to the case of `fraction' which is…

计算机科学中的逻辑 · 计算机科学 2026-04-07 Jan A Bergstra , John V Tucker

The propositional logic is generalized on the real numbers field. The logical analog of the Bernoulli independent tests scheme is constructed. The variant of the nonstandard analysis is adopted for the definition of the logical function,…

综合数学 · 数学 2010-09-15 G. A. Quznetsov

From an inconsistent database non-trivial arguments may be constructed both for a proposition, and for the contrary of that proposition. Therefore, inconsistency in a logical database causes uncertainty about which conclusions to accept.…

人工智能 · 计算机科学 2013-08-12 Morten Elvang-Gøransson , Paul J. Krause , John Fox

In Machine Learning, an accepted definition of fairness of a decision taken by a classifier is that it should not depend on protected features, such as gender. Unfortunately, when constraints exist between features, such dependencies can be…

机器学习 · 计算机科学 2026-05-04 Martin C. Cooper , Imane Bousdira

We initiate an investigation how the fundamental concept of independence can be represented effectively in the presence of incomplete information in relational databases. The concepts of possible and certain independence are proposed, and…

数据库 · 计算机科学 2025-10-10 Miika Hannula , Minna Hirvonen , Juha Kontinen , Sebastian Link

We analyze a class of modal logics rendered insensitive to reflexivity by way of a modification to the semantic definition of the modal operator. We explore the extent to which these logics can be characterized, and prove a general…

逻辑 · 数学 2019-02-20 David Gilbert , Giorgio Venturi

The concept of definability of quantum fields in a set-theoretical foundation is introduced. We propose an axiomatic set theory and then derive a nonlinear sigma model and the Schroedinger equation in a Lagrangian form; this follows…

综合物理 · 物理学 2009-04-30 D. J. Bendaniel

We define the notion of {\em classifying space} of a topological stack and show that every topological stack \X has a classifying space X which is a topological space well-defined up to weak homotopy equivalence. Under a certain…

代数拓扑 · 数学 2010-05-04 Behrang Noohi

We show that irreducibility is not a first-order definable property of real algebraic varieties. The proof is based on the recent o-minimality result for the exponential function. We conjecture that irreducibility is not a definable…

逻辑 · 数学 2009-10-31 Pascal Koiran

The languages of logics based on team semantics typically only allow atomic negation or restricted negation. In this paper, we explore propositional team-based logics with full (intuitionistic) negation. We demonstrate that including full…

逻辑 · 数学 2024-10-21 Fan Yang