necessary and su cient conditions for a thing. §1. Necessary and Sufficient Conditions Quiz Stats - By Spider play quizzes ad-free You can find IF THEN statements with necessary and sufficient conditions in both the Logic Games and Logical Reasoning sections of the LSAT. A sufficient condition is a condition or set of conditions that will produce the event. Is having the flu virus in your blood a necessary or sufficient condition for being sick? Use the quiz to prepare for the evaluative examinations in class. See results from the Necessary and Sufficient Conditions Quiz on Sporcle, the best trivia site on the internet! To say that X is a necessary condition for Y is to say that it is impossible to have Y without X.

1. None of these conditions is necessary to the card's being an ace, but their disjunction is, since no card can be an ace without fulfilling at least (in fact, exactly) one of these conditions. The concepts of necessary and sufficient conditions help us understand and explain the different kinds of connections between concepts, and how different states of affairs are related to each other.

Necessary conditions. You can find IF THEN statements with necessary and sufficient conditions in both the Logic Games and Logical Reasoning sections of the LSAT. Given the standard theory, necessary and sufficient conditions are converses of each other, and so there is a kind of mirroring or reciprocity between the two: B’s being a necessary condition of A is equivalent to A’s being a sufficient condition of B (and vice versa).
A necessary condition must be there, but it alone does not provide sufficient cause for the occurrence of the event. To say that A is a necessary condition for B, is to say the following: • without A, we won’t have B. Earning 12 credits is not sufficient, however, because earning 120 credits does not guarantee that one will earn a degree. That is not the case in our example statements; but it would be true, for example, if A were "X is less than Y" and B were "Y is greater than X". The question is fairly basic and the example for necessary conditions is poor. Necessary and Sufficient conditions are what make up the two sides of an IF THEN statement. A necessary condition is a condition that must be present for an event to occur. It is clearly on topic; I voted to reopen. Description: This is a practice quiz on the concepts of necessary and sufficient--central ideas for understanding logic. Necessary and su cient conditions try to use other words to pick out all the same things as a given word (so they are coextensive). Unlike de nitions, necessary and su cient conditions are not concerned with maintaining the original meaning. But, the distinction between necessary and sufficient conditions is one that most philosophy students get exposed to early on and with good reason. External Resources. Necessary and Sufficient conditions are what make up the two sides of an IF THEN statement. – vanden Jun 11 '11 at 6:10 | Only the sufficient grounds can do … Last Update: 1/27/13 .
But while that method of getting from the one city to the other would suffice, it is by no means necessary. Necessary but Not Sufficient: A person must be infected with HIV before they can develop AIDS. Three other sufficient conditions are that the center of the card be marked with a single diamond (♦), heart (♥), or club (♣). Having a flu virus is sufficient for being sick, but not necessary since there are other ways to be sick besides having a flu virus. HIV infection is, therefore, a necessary cause of AIDS. David W. Agler .

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