|Extrinsic, philosophy: intrinsic refers to properties that an object must have in order to be this object. This is not the same as the distinction between essential and non-essential properties. For example, the property of being known by many is an extrinsic property for a human. The person would be the same without this property. See also intrinsicness, essence, properties, features, necessity._____________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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Extrinsic explanation/Loar/Field: E.g. when the role of numbers is only the role of names (descriptions) of properties of the physical system - then the properties of numbers will have no effect on the system - e.e. is often useful - but it must have an underlying intrinsic explanation.
Extrinsic explanation/Field: E.g. distance and angle size, use real numbers, but these are causally irrelevant - intrinsic e.: uses "betweenness" and congruence - (without numbers) - Numbers: are eliminated because they are causally ineffective - (as opposed to electrons) - Extrinsic explanation/Field: fruitless, if they are to be the final outcome - intrinsically: can be arbitrarily: E.g. standard meter._____________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.
Realism, Mathematics and Modality Oxford New York 1989
Truth and the Absence of Fact Oxford New York 2001
Science without numbers Princeton New Jersey 1980