Definition of "necessitation" [necessitation]

• Necessity, understood as a logical or other philosophical principle, or as a law or force of nature. (noun)

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• "This is the principle stating that, if a formula A is logically valid, i.e., a logical truth, then its necessitation, that is, the formula obtained by prefixing to it a box or necessity operator, is logically valid, too."
• "A law is a second-order relation of nomic necessitation (N, for short) holding among two or more first-order properties."
• "As we saw in section 3.4, the Second Analogy of Experience, if true, guarantees both the objectivity and the universal diachronic or temporally successive causal necessitation of objects of experience and all of their parts under natural laws."