+D3f often represents a fundamental [Concept](/wiki/Concept), a precise [Definition](/wiki/Definition) that establishes a starting point. It serves as an initial demarcation, clarifying scope and guiding the evolution of understanding within a given domain. Its purpose is to provide a clear, essential reference.
+## See also
+- [Principle](/wiki/Principle)
+- [Framework](/wiki/Framework)
+- [Paradigm](/wiki/Paradigm)
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