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She and others argue that more thought and research is needed into methods for determining where more research is needed. [ 6 ] [ 7 ] Academic journal editors were banning unqualified FRIN statements as early as 1990, requiring more specific information such as what types of research were needed, and what questions they ought to address. [ 1 ]
In writing, phrases commonly used as alternatives to P "if and only if" Q include: Q is necessary and sufficient for P, for P it is necessary and sufficient that Q, P is equivalent (or materially equivalent) to Q (compare with material implication), P precisely if Q, P precisely (or exactly) when Q, P exactly in case Q, and P just in case Q. [3]
Necessary and sufficient condition, in logic, something that is a required condition for something else to be the case; Necessary proposition, in logic, a statement about facts that is either unassailably true (tautology) or obviously false (contradiction) Metaphysical necessity, in philosophy, a truth which is true in all possible worlds
To say that P is necessary and sufficient for Q is to say two things: that P is necessary for Q, , and that P is sufficient for Q, . equivalently, it may be understood to say that P and Q is necessary for the other, , which can also be stated as each is sufficient for or implies the other.
On Lexico, the proverb has been defined as "When the need for something becomes imperative, you are forced to find ways of getting or achieving it." [ 2 ] According to the Cambridge Dictionary , this is "an expression that means that if you really need to do something, you will think of a way of doing it."
Something happened, and you need money. Urgently. You look at your savings account. Tumbleweeds roll across the place your emergency fund should occupy.
In that case they would say it was not evil; it was only unfortunate or sad. For the same reason party, if necessary, is not evil. But they do not want to say that, for they are convinced that party is an evil. Therefore they must take the alternative and admit that it is not necessary; and their excuse for party is gone. [8]
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