Results 71 to 80 of about 24,422 (242)

Sakes exist

open access: yesPhilosophy and Phenomenological Research, Volume 111, Issue 1, Page 71-86, July 2025.
Abstract Contemporary ontologists, almost unanimously, dismiss the idea that sakes (as in ‘I did it for her sake’) exist. Likewise with the kibosh, snooks, behalves, dints, and so on. In this essay, I argue that there is no good reason for this near consensus, I begin to make a case that sakes and the like do exist, and I consider what this means more ...
Tristan Grøtvedt Haze
wiley   +1 more source

Legal Systems and Complexity: A Comment on Allen

open access: yesRatio Juris, Volume 38, Issue 2, Page 94-107, July 2025.
Abstract This work addresses Ronald J. Allen's views on complexity, evidence, and law. After some remarks on normative systems and the metaphors used to characterize them, the work addresses the issue of complexity by asking how a system characterized by complexity can tame the world's complexity; the focus then shifts to some aspects of evidence and ...
Giovanni Tuzet
wiley   +1 more source

Common Fixed-Point Theorems in Modular Function Spaces Endowed with Reflexive Digraph

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 2020
The purpose of this work is to extend the Knaster–Tarski fixed-point theorem to the wider field of reflexive digraph. We give also a DeMarr-type common fixed-point theorem in this context.
Jaauad Jeddi   +2 more
doaj   +1 more source

The Prolog Inference Model refutes Tarski Undefinability [PDF]

open access: yes
The generalized conclusion of the Tarski and Gödel proofs: All formal systems of greater expressive power than arithmetic necessarily have undecidable sentences.
Olcott, Pete
core  

Weak compactness cardinals for strong logics and subtlety properties of the class of ordinals

open access: yesJournal of the London Mathematical Society, Volume 112, Issue 1, July 2025.
Abstract Motivated by recent work of Boney, Dimopoulos, Gitman, and Magidor, we characterize the existence of weak compactness cardinals for all abstract logics through combinatorial properties of the class of ordinals. This analysis is then used to show that, in contrast to the existence of strong compactness cardinals, the existence of weak ...
Philipp Lücke
wiley   +1 more source

On the one‐dimensional polynomial, regular, and regulous images of closed balls and spheres

open access: yesJournal of the London Mathematical Society, Volume 112, Issue 1, July 2025.
Abstract We present a full geometric characterization of the one‐dimensional (semialgebraic) images S$S$ of either n$n$‐dimensional closed balls B¯n⊂Rn$\overline{{\mathcal {B}}}_n\subset {\mathbb {R}}^n$ or n$n$‐dimensional spheres Sn⊂Rn+1${\mathbb {S}}^n\subset {\mathbb {R}}^{n+1}$ under polynomial, regular, and regulous maps for some n⩾1$n\geqslant 1$
José F. Fernando
wiley   +1 more source

Algebraization of Jaśkowski’s Paraconsistent Logic D2

open access: yesStudies in Logic, Grammar and Rhetoric, 2015
The aim of this paper is to present an algebraic approach to Jaśkowski’s paraconsistent logic D2. We present: a D2-discursive algebra, Lindenbaum- Tarski algebra for D2 and D2-matrices.
Ciuciura Janusz
doaj   +1 more source

Gödel, Tarski, Church, and The Liar [PDF]

open access: yesBulletin of Symbolic Logic, 2003
The fact that Gödel's famous incompleteness theorem and the archetype of all logical paradoxes, that of the Liar, are related closely is, of course, not only well known, but is a part of the common knowledge of the community of logicians. Indeed, almost every more or less formal treatment of the theorem makes a reference to this connection.
openaire   +3 more sources

On generic structures preserving elementary equivalence and elementary embeddability

open access: yesҚарағанды университетінің хабаршысы. Математика сериясы, 2018
We consider criteria for elementary equivalence and elementary embeddability for generic structures. They use classical characterizations for the general case.
S.V. Sudoplatov
doaj   +1 more source

Tarski's conception of logic

open access: yesAnnals of Pure and Applied Logic, 2004
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
openaire   +1 more source

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