Álgebra de De Morgan (Portuguese Wikipedia)

Analysis of information sources in references of the Wikipedia article "Álgebra de De Morgan" in Portuguese language version.

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1projecteuclid.org

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doi.org

dx.doi.org

Kleene, S. C. (23 de julho de 2017). «On Notation for Ordinal Numbers». The Journal of Symbolic Logic. 3 (4): 150–155. doi:10.2307/2267778 – via JSTOR

jstor.org

Kleene, S. C. (23 de julho de 2017). «On Notation for Ordinal Numbers». The Journal of Symbolic Logic. 3 (4): 150–155. doi:10.2307/2267778 – via JSTOR

projecteuclid.org

Brignole, D. and Monteiro, A. Caracterisation des algebres de Nelson par des egalites, Notas de Logica Matematica, Instituto de Matematica Universidad del sur Bahia Blanca 20 (1964) A (possibly abbreviated) version of this paper appeared later in Proc.