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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 ?
The expansion works also necessitate closure of the entrance and exit to the parking area in front of the airport.
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.
Steps taken to create a stronger economic and fiscal union in the EU might at a later stage necessitate revisions in the EU Treaties, said European Commission President Jose Manuel Barroso.
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." Mazel tov!
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.
If investments are required that necessitate approval by an investment review board, then that process must be fulfilled concurrent with this policy.
It is also invested with a sense of adventure and achievement: The photography of dangerous places tends to necessitate the negotiation of corporate bureaucracy as well as some tricky outdoor navigation.
This should even necessitate further care in case of the use of formulated products such as glyphosate-based herbicides on tolerant, edible plants.
The overhaul will necessitate the complete closure of the building in 2006; the reconstruction is expected to continue at least until 2008, with the theater open part-time.
Still longer increases would necessitate a shift in our view of lifecycle events such as education (which may occur periodically throughout life), marriage, child rearing, and suicide.