Axiomatic geometry of convexity. II: Axiomatics of the convex hull. (Geometría axiomática de la convexidad. II: Axiomática de cápsula convexa.) (Spanish)
Rev. Educ. Mat. 30, No. 3, 13-28 (2015).
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Axiomatic geometry of convexity. I: Axiomatics of segments. (Geometía axiomática de la convexidad. I: Axiomática de segmentos.) (Spanish)
Rev. Educ. Mat. 30, No. 2, 3-23 (2015).
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Symbolic logic and set theory, part 2. (Lógica simbólica y teoría de conjuntos, parte II.) (Spanish)
Rev. Educ. Mat. 24, No. 2, 15-27 (2009).
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Argumentative capacity and mathematical narratives in mathematics classes with technologies. (A capacidade argumentativa e as narrativas matemáticas nas aulas de matemática com tecnologias.) (Portuguese. English summary)
Bol. GEPEM, No. 53, 95-109 (2008).
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