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Tautological Truth: Identity or equality between terms (e.g., “A is A”), true by definition.
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Analytic Truth: Testimony guaranteeing internal consistency within a logical system, independent of external reality.
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Ideal Truth: A perfectly parsimonious description, free of error or bias, replicable with complete knowledge and due diligence.
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Truthfulness: Practical testimony given with incomplete knowledge but after due diligence to eliminate error, bias, and deceit.
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Decidability as the Goal: Decidability is the endgameâresolving questions or disputes objectively. Itâs the “why” of the system, driven by the need for cooperation and conflict resolution in human societies.
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Testifiability as the Method: Testifiability is the “how”âthe operational process that evaluates claims through falsifiable tests, ensuring they can support decidability by eliminating subjectivity and ambiguity.
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Truth as the Product: Truth is the “what”âthe warranted testimony that emerges from testifiability, providing the reliable content needed for decidability.
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Satisfaction of Demand for Infallibility as the Calibration: This is the “how much”âthe contextual benchmark that determines the level of testifiability required to produce truth sufficient for decidability. It adjusts the rigor of the process to the stakes involved, ensuring practical utility without chasing unattainable absolutes.