Results 11 to 20 of about 16,840,789 (262)

BH-CIFOL: Case-Intensional First Order Logic: (II) Branching Histories. [PDF]

open access: yesJ Philos Logic, 2014
This is Part I of a two-part essay introducing case-intensional first-order logic (CIFOL), an easy-to-use, uniform, powerful, and useful combination of first order logic with modal logic resulting from philosophical and technical modifications of Bressan’
Belnap N, Müller T.
europepmc   +3 more sources

Games and cardinalities in inquisitive first-order logic [PDF]

open access: yes, 2023
Inquisitive first-order logic, InqBQ, is a system which extends classical first-order logic with formulas expressing questions. From a mathematical point of view, formulas in this logic express properties of sets of relational structures.
Ciardelli, I., Grilletti, G.
core   +1 more source

Omitting Types in Fragments and Extensions of First Order Logic

open access: yesBulletin of the Section of Logic, 2021
Fix \(2 < n < \omega\). Let \(L_n\) denote first order logic restricted to the first n variables. Using the machinery of algebraic logic, positive and negative results on omitting types are obtained for \(L_n\) and for infinitary variants and extensions ...
Tarek Sayed Ahmed
doaj   +1 more source

On the Mints Hierarchy in First-Order Intuitionistic Logic [PDF]

open access: yesLogical Methods in Computer Science, 2017
We stratify intuitionistic first-order logic over $(\forall,\to)$ into fragments determined by the alternation of positive and negative occurrences of quantifiers (Mints hierarchy). We study the decidability and complexity of these fragments.
Aleksy Schubert   +2 more
doaj   +1 more source

A first-order logic characterization of safety and co-safety languages [PDF]

open access: yesLogical Methods in Computer Science, 2023
Linear Temporal Logic (LTL) is one of the most popular temporal logics, that comes into play in a variety of branches of computer science. Among the various reasons of its widespread use there are its strong foundational properties: LTL is equivalent to ...
Alessandro Cimatti   +4 more
doaj   +1 more source

Geometrisation of first-order logic [PDF]

open access: yes, 2015
That every first-order theory has a coherent conservative extension is regarded by some as obvious, even trivial, and by others as not at all obvious, but instead remarkable and valuable; the result is in any case neither sufficiently well-known nor ...
Dyckhoff R.   +3 more
core   +1 more source

First-Order Logic with Connectivity Operators [PDF]

open access: yes, 2022
First-order logic (FO) can express many algorithmic problems on graphs, such as the independent set and dominating set problem parameterized by solution size.
Siebertz, Sebastian   +2 more
core   +2 more sources

A First-Order Complete Temporal Logic for Structured Context-Free Languages [PDF]

open access: yesLogical Methods in Computer Science, 2022
The problem of model checking procedural programs has fostered much research towards the definition of temporal logics for reasoning on context-free structures. The most notable of such results are temporal logics on Nested Words, such as CaRet and NWTL.
Michele Chiari   +2 more
doaj   +1 more source

A First Order Logic Definition of Beyond-Planar Graphs

open access: yesJournal of Graph Algorithms and Applications, 2018
Beyond-planarity is a collective term for classes of graphs that extend the planar graphs and are defined by drawings with restrictions on crossings. Examples are 1-planar, fan-planar, fan-crossing free, and quasi-planar graphs. We define these and other
Franz Brandenburg
doaj   +1 more source

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