Displaying similar documents to “Inference in a Relation Knowledge-base With two Types of Null Values”

The Phenomenology of Second-Level Inference: Perfumes in The Deductive Garden

David Makinson (2020)

Bulletin of the Section of Logic

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We comment on certain features that second-level inference rules commonly used in mathematical proof sometimes have, sometimes lack: suppositions, indirectness, goal-simplification, goal-preservation and premise-preservation. The emphasis is on the roles of these features, which we call 'perfumes', in mathematical practice rather than on the space of all formal possibilities, deployment in proof-theory, or conventions for display in systems of natural deduction.

Confidentiality in the European Statistical System.

Photis Nanopoulos (1997)

Qüestiió

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Confidentiality and data protection are the counterparts of the obligation for response and the cornerstone for confidence building between the national statistical services and the respondents. On this common principle the various national statistical systems among the 15 (and other) European states have been established. There is great concern at national and international level on statistical confidentiality. The respect of privacy has led national authorities to develop...