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Published online by Cambridge University Press: 17 August 2016
The article entitled, “Jevons on measurement: A comment” (Mosselmans [1998]), betrays a lack of comprehension of the Jevonsonian process of productive abstraction of numbers. This misapprehension is clearly apparent when B. Mosselmans wrongly confuses units for numbers. This especially furthers the circumvention of the Jevonsonian idea according to which the world is ruled by numbers.
Utility is not a measurable magnitude, yet it is impossible to feature it in the theory of exchange? Jevons responds by the negative. In his view, it does exist a general theory concerning the mathematical expression of magnitude that is not measurable. This assertion is found in the Theory of Political Economy and in The Principle of Science.