{"title":"Necessary and Sufficient Conditions","authors":"A. Brennan","doi":"10.1142/9789813208636_0009","DOIUrl":"https://doi.org/10.1142/9789813208636_0009","url":null,"abstract":"In the social sciences, precise causal relationships are almost never found. That is, we can rarely, if ever, say: If A(and only A) then B (e.g., If employment rises to 20 percent, then the Democratic party will defeat the Republican party). When such a situation exists, however, we can say that A is both a necessary and sufficient condition for B (which is the same as saying that we have, in effect, found the one and only cause of B).","PeriodicalId":187970,"journal":{"name":"Logic in Wonderland","volume":"31 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-10-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129538079","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"The Quantifiers ALL, THERE EXISTS, and ONLY","authors":"","doi":"10.1142/9789813208681_0007","DOIUrl":"https://doi.org/10.1142/9789813208681_0007","url":null,"abstract":"","PeriodicalId":187970,"journal":{"name":"Logic in Wonderland","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-09-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126950866","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Comprehensive Summary and Review","authors":"","doi":"10.1142/9789813208636_0010","DOIUrl":"https://doi.org/10.1142/9789813208636_0010","url":null,"abstract":"","PeriodicalId":187970,"journal":{"name":"Logic in Wonderland","volume":"9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-09-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132021788","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Necessary and Sufficient Conditions","authors":"A. Hutchinson","doi":"10.1142/9789813208681_0009","DOIUrl":"https://doi.org/10.1142/9789813208681_0009","url":null,"abstract":"Conditions To say that one thing is a condition for another is to say that the one thing is involved in making the second thing happen. The most common example of a condition is a cause. For example, striking a billiard ball with a cue causes the ball to move. Thus, the striking of the ball is a 'condition' of the movement of the ball. But conditions need not be causes. Giving permission is another type of condition. For example, a driver's license gives you permission to drive. This, having a driver's license is a 'condition' for driving.","PeriodicalId":187970,"journal":{"name":"Logic in Wonderland","volume":"20 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-09-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123983107","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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