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necessary

1. Logic
a. (of a statement, formula, etc.) true under all interpretations or in all possible circumstances
b. (of a proposition) determined to be true by its meaning, so that its denial would be self-contradictory
c. (of a property) essential, so that without it its subject would not be the entity it is
d. (of an inference) always yielding a true conclusion when its premises are true; valid
e. (of a condition) entailed by the truth of some statement or the obtaining of some state of affairs
2. Philosophy (in a nonlogical sense) expressing a law of nature, so that if it is in this sense necessary that all As are B, even although it is not contradictory to conceive of an A which is not B, we are licensed to infer that if something were an A it would have to be B
References in periodicals archive ?
BEIRUT: Interior Minister Nouhad Machnouk said Monday Lebanon was going through "delicate times" that necessitate solidarity among all state bodies to ensure the security and safety of the Lebanese.
Barroso explained that many steps are to be immediately taken, within the framework of functioning EU Treaties, but the evolution of the Union in the longer term could necessitate revisions in the treaties.
Indeed, Wyman knew that dating Gold would necessitate ending the toothy affair, but it seemed worth it: As she told her mother, "There's lots of dentists in Manhattan, but good guys are hard to find.
However, increasing requirements for greater precision and repeatability of test sequences and test results, as well as economical and fast test completion, often are said to necessitate a certain degree of modernization.
Faculty spokesmen say revenue shortfalls may necessitate a $40 million operating budget cut.
Over the life of the contract, the Air Force can issue delivery orders totaling up to the maximum amount indicated above, though actual requirements may necessitate less than this amount.
They can lead to higher rates, depending on the carrier, since socio-economic requirements and Federal wage statutes apply, and their fixed prices necessitate more accurate bids.
This will not, however, be the case for the privacy and security HIPAA rules, which will necessitate development of new and permanent security and privacy functions.
Rheumatoid arthritis and osteoarthritis are both conditions that result in joint pain and often necessitate lifestyle changes.
For example, the plant manager has introduced a "plant engineering" function that serves to buffer against corporate engineering, which is sometimes too eager to introduce its latest ideas without a sufficient understanding of the problems and requirements such changes necessitate on the plant floor.
Climate change will remain a serious long-term problem that will necessitate further action," they said.