Works by Coniglio, Marcelo (exact spelling)

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  1. Some results on ordered structures in toposes.Luís Sbardellini & Marcelo Coniglio - 2006 - Reports on Mathematical Logic:181-198.
    A topos version of Cantor’s back and forth theorem is established and used to prove that the ordered structure of the rational numbers (Q, <) is homogeneous in any topos with natural numbers object. The notion of effective homogeneity is introduced, and it is shown that (Q, <) is a minimal effectively homogeneous structure, that is, it can be embedded in every other effectively homogeneous ordered structure.
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