The Nikodym property and local properties of Boolean algebras

Antonio Aizpuru

Displaying similar documents to “The Nikodym property and local properties of Boolean algebras”

On positive, linear and quadratic Boolean functions

Sergiu Rudeanu (2012)

Kragujevac Journal of Mathematics

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Program Algebra over an Algebra

Grzegorz Bancerek (2012)

Formalized Mathematics

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We introduce an algebra with free variables, an algebra with undefined values, a program algebra over a term algebra, an algebra with integers, and an algebra with arrays. Program algebra is defined as universal algebra with assignments. Programs depend on the set of generators with supporting variables and supporting terms which determine the value of free variables in the next state. The execution of a program is changing state according to successor function using supporting terms. ...

On the existence of prime ideals in Boolean algebras

Jörg Flum (1999)

Banach Center Publications

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Rasiowa and Sikorski [5] showed that in any Boolean algebra there is an ultrafilter preserving countably many given infima. In [3] we proved an extension of this fact and gave some applications. Here, besides further remarks, we present some of these results in a more general setting.

Analysis of Algorithms: An Example of a Sort Algorithm

Grzegorz Bancerek (2013)

Formalized Mathematics

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We analyse three algorithms: exponentiation by squaring, calculation of maximum, and sorting by exchanging in terms of program algebra over an algebra.

A basis of the conjunctively polynomial-like Boolean functions.

Gonda, J. (2009)

Acta Mathematica Academiae Paedagogicae Nyí regyháziensis. New Series [electronic only]

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On the implementation of set-valued non-Boolean functions.

Čomić, Lidija, Tošić, Ratko (2004)

Novi Sad Journal of Mathematics

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A model theory approach to structural limits

Jaroslav Nešetřil, Patrice Ossona de Mendez (2012)

Commentationes Mathematicae Universitatis Carolinae

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The goal of this paper is to unify two lines in a particular area of graph limits. First, we generalize and provide unified treatment of various graph limit concepts by means of a combination of model theory and analysis. Then, as an example, we generalize limits of bounded degree graphs from subgraph testing to finite model testing.

Conjunctively polynomial-like Boolean functions.

Gonda, J. (2007)

Acta Mathematica Academiae Paedagogicae Nyí regyháziensis. New Series [electronic only]

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First Order Languages: Further Syntax and Semantics

Marco Caminati (2011)

Formalized Mathematics

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Third of a series of articles laying down the bases for classical first order model theory. Interpretation of a language in a universe set. Evaluation of a term in a universe. Truth evaluation of an atomic formula. Reassigning the value of a symbol in a given interpretation. Syntax and semantics of a non atomic formula are then defined concurrently (this point is explained in [16], 4.2.1). As a consequence, the evaluation of any w.f.f. string and the relation of logical implication are...

Cellularity of free products of Boolean algebras (or topologies)

Saharon Shelah (2000)

Fundamenta Mathematicae

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The aim this paper is to present an answer to Problem 1 of Monk [10], [11]. We do this by proving in particular that if μ is a strong limit singular cardinal, $θ = {(2^{c f (μ)})}^{+}$ and $2^{μ} = μ^{+}$ then there are Boolean algebras $𝔹_{1}, 𝔹_{2}$ such that $c (𝔹_{1}) = μ, c (𝔹_{2}) < θ b u t c (𝔹_{1} * 𝔹_{2}) = μ^{+}$ . Further we improve this result, deal with the method and the necessity of the assumptions. In particular we prove that if $𝔹$ is a ccc Boolean algebra and $μ^{ℶ_{ω}} \leq λ = c f (λ) \leq 2^{μ}$ then $𝔹$ satisfies the λ-Knaster condition (using the “revised GCH theorem”).