D. Dubois refers to the work of Paul Dubois, a significant figure in many-valued and fuzzy logics, who contributed to the development of theoretical frameworks that extend classical logic. His work focuses on how to handle concepts that are not strictly true or false, allowing for degrees of truth and uncertainty. This concept is foundational in many-valued logic systems, which aim to more accurately reflect real-world situations where binary true-false evaluations are insufficient.
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