Definitions
from Wiktionary, Creative Commons Attribution/Share-Alike License.
- noun Plural form of
quasivariety .
Etymologies
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Examples
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Much as abstract algebra numbers groups, rings, and fields among its basic classes, so does universal algebra count varieties, quasivarieties, and elementary classes among its basic classes of classes.
Algebra Pratt, Vaughan 2007
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The majority of classes of algebras that provide semantics for propositional logics are quasivarieties and in most cases varieties.
Propositional Consequence Relations and Algebraic Logic Jansana, Ramon 2006
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Moreover, different quasivarieties of algebras can be a
Propositional Consequence Relations and Algebraic Logic Jansana, Ramon 2006
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Thus quasivarieties and varieties are all SP-classes.
Propositional Consequence Relations and Algebraic Logic Jansana, Ramon 2006
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Varieties and quasivarieties can be characterized by the closure properties they enjoy.
Propositional Consequence Relations and Algebraic Logic Jansana, Ramon 2006
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The theory of varieties and quasivarieties is one of the main subjects of universal algebra.
Propositional Consequence Relations and Algebraic Logic Jansana, Ramon 2006
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