truthmaker principle

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Term brought into currency by the Australian philosopher David Armstrong. The idea is that propositions cannot be ‘barely’ true. There must be something making them true: a fact, or substantial complex or state of affairs. The principle motivates substantial metaphysical and ontological searches for the ultimate nature of such complexes. It also gives rise to certain problems: for instance, what is the truthmaker for ‘unicorns do not exist’?

Subjects: Philosophy.

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