|Relevance: is the importance of previously identified aspects of an object, action or situation against other aspects in relation to a description or assessment. See also relevance logic._____________Annotation: The above characterizations of concepts are neither definitions nor exhausting presentations of problems related to them. Instead, they are intended to give a short introduction to the contributions below. – Lexicon of Arguments.|
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|Fraassen I 104
Relevance/explanation/ScrivenVsHempel/BrombergerVsHempel: Relevance provides neither sufficient nor necessary conditions that something is an explanation - not sufficient: good belief reasons are no explanation. - E.g. redshift cannot be a reason for the expansion. - Unnecessary: not every explanation gives good belief reasons. - E.g. rare disease as a result of a frequent disease: - So you advise for treatment - but it would not be rational to expect that the disease occurs. - E.g. a very small amount of uranium does probably not radiate - but when it radiates the correct explanation is, that it is uranium - E.g. a man that takes birth control pills and does not get pregnant.
Relevance insufficient: E.g. 90% of the plants are killed: then it is not an explanation for the plants that survived that they were sprayed._____________Explanation of symbols: Roman numerals indicate the source, arabic numerals indicate the page number. The corresponding books are indicated on the right hand side. ((s)…): Comment by the sender of the contribution.
B. van Fraassen
The Scientific Image Oxford 1980