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Single Idea 8468

[filed under theme 2. Reason / F. Fallacies / 8. Category Mistake / a. Category mistakes ]

Full Idea

Russell proposed (in his theory of types) that sentences like 'The number two is fond of cream cheese' or 'Procrastination drinks quadruplicity' should be regarded as not false but meaningless.

Gist of Idea

The sentence 'procrastination drinks quadruplicity' is meaningless, rather than false

Source

report of Bertrand Russell (Introduction to Mathematical Philosophy [1919]) by Alex Orenstein - W.V. Quine Ch.3

Book Ref

Orenstein,Alex: 'W.V. Quine' [Princeton 2002], p.58


A Reaction

This seems to be the origin of the notion of a 'category mistake', which Ryle made famous. The problem is always poetry, where abstractions can be reified, or personified, and meaning can be squeezed out of almost anything.


The 11 ideas with the same theme [overview of confusions in attributions to things]:

The differentiae of genera which are different are themselves different in kind [Aristotle]
Asking whether man's will is free is liking asking if sleep is fast or virtue is square [Locke]
You can't transfer external properties unchanged to apply to ideas [Frege]
The sentence 'procrastination drinks quadruplicity' is meaningless, rather than false [Russell, by Orenstein]
The theory of types makes 'Socrates and killing are two' illegitimate [Russell]
As well as a truth value, propositions have a range of significance for their variables [Russell]
'The number one is bald' or 'the number one is fond of cream cheese' are meaningless [Russell]
Words of the same kind can be substituted in a proposition without producing nonsense [Wittgenstein]
We can't do philosophy without knowledge of types and categories [Ryle]
Category mistakes are either syntactic, semantic, or pragmatic [Magidor]
People have dreams which involve category mistakes [Magidor]