Hasil untuk "math.LO"

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CrossRef Open Access 2026
Lo político de lo pedagógico y lo pedagógico de lo político: claves epistemológicas

Axel Meléndez Montero

The article provides a critical analysis of the relationship between the political and pedagogical approaches, grounded in practical reflection and a review of relevant literature. It identifies three key analytical points: the epistemological need to acknowledge the political nature inherent in every educational act; the realization of orientations and intentions within the pedagogical relationship; and the dynamic, interdependent connection between both fields. From this perspective, education is seen as non-neutral—a space of conflict where tensions, resistances, and opportunities for change are continually shaped. The text encourages developing epistemological perspectives that facilitate understanding educational processes as historical, situated, and deeply political.

arXiv Open Access 2025
All you need is $\mathbf{A}_κ$

Nathaniel Bannister

We show that the vanishing of higher derived limits of the system $\mathbf{A}_κ$ implies the additivity of strong homology on the class of locally compact metric spaces of weight at most $κ$, thereby establishing a converse to a theorem of Mardešić and Prasolov.

en math.LO
arXiv Open Access 2025
Notes on Laver Tables

Renrui Qi

We present some new lower bound estimates for certain numbers in Laver table theory and introduce several related structures of interest.

en math.LO, math.CO
CrossRef Open Access 2024
Atender a lo sagrado Profundizando en la mística de lo cotidiano

Maria Marcela Mazzini

Luego de repasar algunos datos de la vida y obra de Margaret Guenther, en una primera parte; el texto revisita en un segundo punto, un artículo que va a tener diez años el año próximo: María Marcela Mazzini, «Mística en la trama de la vida cotidiana».[1] Se señalan aspectos fundamentales de aquel escrito y se cuestionan algunas afirmaciones, procurando su actualización. En la tercera parte se intenta dar un paso de profundización, a la luz de un concepto que Guenther desarrolla en uno de sus artículos y que podría considerarse una expresión equivalente a la mística de lo cotidiano: atender a lo sagrado. Esa idea se despliega en sus diversos aspectos en el resto del texto y se esbozan algunas ideas que apuntan a descubrir lo sagrado tanto en la propia vida como en la de aquellos y aquellas a quienes acompañamos.   [1] María Marcela Mazzini, «Mística en la trama de la vida cotidiana», Teología 116 (2015): 29-48.

arXiv Open Access 2018
Fréchet cardinals

Gabriel Goldberg

An infinite cardinal $λ$ is called Fréchet if the Fréchet filter on $λ$ extends to a countably complete ultrafilter. We investigate the relationship between Fréchet cardinals and strongly compact cardinals under a hypothesis called the Ultrapower Axiom.

en math.LO
arXiv Open Access 2015
Almost Souslin Kurepa trees

Mohammad Golshani

We show that the existence of an almost Souslin Kurepa tree is consistent with $ZFC$. We also prove their existence in $L$. These results answer two questions from Zakrzewski.

en math.LO
arXiv Open Access 2014
The structure of the Mitchell order - II

Omer Ben-Neria

We address the question regarding the structure of the Mitchell order on normal measures. We show that every well founded order can be realized as the Mitchell order on a measurable cardinal $κ$ from some large cardinal assumption.

en math.LO
CrossRef Open Access 2007
Sobre la distinción entre lo íntimo, lo privado y lo público de Ernesto Garzón Valdés

Isabel Lifante Vidal

El artículo analiza la distinción entre el ámbito de lo íntimo, lo privado y lo público trazada por Ernesto Garzón Valdés, poniendo de manifiesto la existencia de dos tipos de valoraciones implícitas en dicha caracterización: las relativas a la accesibilidad o divulgación de una conducta, y las relativas a la imposición de límites normativos a dicha conducta. A partir de ahí, y centrándose exclusivamente en el primer tipo de cuestiones, propone una manera alternativa de caracterizar el ámbito de lo íntimo, lo privado y lo público.

arXiv Open Access 2004
Long low iterations

Heike Mildenberger, Saharon Shelah

We try to control many cardinal characteristics by working with a notion of orthogonality between two families of forcings. We show that b^+<g is consistent

en math.LO
arXiv Open Access 2004
The combinatorics of reasonable ultrafilters

Saharon Shelah

We are interested in generalizing part of the theory of ultrafilters on omega to larger cardinals. Here we set the scene for further investigations introducing properties of ultrafilters in strong sense dual to being normal.

en math.LO
arXiv Open Access 2003
How special is your Aronszajn tree?

Chaz Schlindwein

The following is consistent: There is a stationary set S such that every Aronszajn tree is S-*-special and there is an Aronszajn tree T such that for every unbounded E we have T is not E-special. This answers a question of Shelah (Proper and Improper Forcing, IX.4.9(5).

en math.LO

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