1970
DOI: 10.1305/ndjfl/1093894076
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Les algèbres de Heyting et de Lukasiewicz trivalentes.

Abstract: Rappelons les definitions et les resultats que nous aurons a utiliser par la suite.La notion de reticule" distributif peut etre definie avec M. Sholander [27] comme un systeme (A, Λ, v) forme par un ensemble non vide A et deux operations binaires Λ, V definies sur A, qui verifient les axiomes (pour tout x, y, z de A):Rappelons maintenant la dέfinition d'algebre de Morgan.2.1 DEFINITION. Un systeme <& = (A, 1, ~, Λ, V) forme par un ensemble non vide A, un έlέment leA, une operation monaire ~ et deux operations … Show more

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Cited by 21 publications
(20 citation statements)
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“…Following A. Monteiro [Mon63], we can define a three-valued Lukasiewicz algebra as an algebra (L, ∨, ∧, ∼, ▽, 0, 1) such that (L, ∨, ∧, ∼, 0, 1) is a De Morgan algebra and ▽ is an unary operation, called the possibility operator, that satisfies the identities:…”
Section: Algebras Defined On 3 U and A(u)mentioning
confidence: 99%
See 1 more Smart Citation
“…Following A. Monteiro [Mon63], we can define a three-valued Lukasiewicz algebra as an algebra (L, ∨, ∧, ∼, ▽, 0, 1) such that (L, ∨, ∧, ∼, 0, 1) is a De Morgan algebra and ▽ is an unary operation, called the possibility operator, that satisfies the identities:…”
Section: Algebras Defined On 3 U and A(u)mentioning
confidence: 99%
“…It is proved by Monteiro in [Mon63] that every three-valued Lukasiewicz algebra forms a Kleene algebra. Note that x ∧ ∼x ≤ u ≤ y ∨ ∼y for x, y ∈ 3.…”
Section: Algebras Defined On 3 U and A(u)mentioning
confidence: 99%
“…These algebras were deeply investigated by A. Monteiro in the early sixties, who related them with other algebras arising from logic, like monadic Boolean algebras and Nelson algebras [17,18,19,20,21].…”
Section: Introductionmentioning
confidence: 99%
“…Let A, ∧, ∨, * , +, 0, 1 be an algebra of type (2, 2, 1, 1, 0, 0) where A, ∧, ∨, 0, 1 is a bound distributive lattice with least element 0, greatest element 1 and the following properties are satisfied: (V1) x ∧ x * = 0, (V2) (x ∧ y) * = x * ∧ y * , (V3) 0 * = 1, (V4) x ∨ x + = 1, (V5) (x ∨ y) + = x + ∧ y + , (V6) 1 + = 0, (V7) if x * = y * and x + = y + then x = y. About these algebras he proved that it is posible to define, in the sense of [14,15] a structure of three-valued Lukasiewicz algebra by taking ∼x = (x ∨ x * ) ∧ x + and ▽x = x * * .…”
mentioning
confidence: 99%