Yalowitz 1998a has, however, provided an interpretation of Anomalous Monism stressing Davidson's views on causality and the nomic status of dispositions (see 4.3) in which causal closure is derived from the cause-law principle, token-identity and the anomalism of causally defined properties.
Psychologists have used different types of tokens as rewards to implement reinforcement, and token economies, involving the principles of conditioned reinforcement, have been successfully used to alter behaviour in schools, institutions, and hospitals (see below Applications in society).
By the same token, Luis Bettencourt and Geoffrey West apply the principle of "scaling" to find correlations between urban metrics and socio-economic systems, and the size of cities, claiming that the understanding of cities' dynamics, growth and evolution in a scientifically predictable, quantitative way is crucial in city planning [6].
In most instances, tokens represent discrete levels of activity, but fully quantitative description is, in principle, possible, with node token status reflecting molecular quantities.
The manually crafted transition network of the pattern-matcher is very simple, as it allows one insertion or one deletion within a SNOMED term, and ranks the proposed candidate terms based on these basic edit operations following a completion principle: the more tokens are recognized, the more the term is relevant.
The best SpamProbe can do is add each individual misspelling to its list of suspect tokens without ever gleaning the higher principle involved.
Bromberger (1992a, p.176) claims that linguists "often impute properties to types after observing and judging some of their tokens and seem to do this in a principled way" and calls the principle that licenses this inference the Platonic Relationship Principle.
The first three have agreed in principle to surrender their shareholdings for a token €1 ($1.25) provided all liabilities are taken off their hands.
The type is thus a very important theoretical object, whose function is to unify all the tokens as being "of the same type"; in accordance with the Platonic Relationship Principle, the type has properties based on the properties of some of its tokens, but in a complex way in addition, the tokens have some of their properties in virtue of what properties the type has.
By the same token, many commercial banks have signed up to the Equator Principles, a set of ethical rules for bankers that enshrine respect for conservation.
