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Single Idea 5629

[filed under theme 14. Science / A. Basis of Science / 6. Falsification ]

Full Idea

If only a single false consequence can be derived from a proposition, then this proposition is false.

Gist of Idea

If a proposition implies any false consequences, then it is false

Source

Immanuel Kant (Critique of Pure Reason [1781], B819/A791)

Book Ref

Kant,Immanuel: 'Critique of Pure Reason', ed/tr. Guyer,P /Wood,A W [CUO 1998], p.669


A Reaction

Seems right. Of course, it might imply entirely true consequences, and still be false. This idea has to be one of the foundations (sic) of coherentism about truth and justification.


The 21 ideas with the same theme [establishing that a fact or theory is not true]:

A single counterexample is enough to prove that a truth is not necessary [Aristotle]
If a proposition implies any false consequences, then it is false [Kant]
Experimenters assume the theory is true, and stick to it as long as result don't disappoint [James]
Observation can force rejection of some part of the initial set of claims [Duhem, by Boulter]
We only discard a hypothesis after one failure if it appears likely to keep on failing [Ayer]
Kuhn's scientists don't aim to falsifying their paradigm, because that is what they rely on [Kuhn, by Gorham]
Most theories are continually falsified [Kuhn, by Kitcher]
Give Nobel Prizes for really good refutations? [Gorham on Popper]
Falsification is the criterion of demarcation between science and non-science [Popper, by Magee]
We don't only reject hypotheses because we have falsified them [Lipton on Popper]
If falsification requires logical inconsistency, then probabilistic statements can't be falsified [Bird on Popper]
When Popper gets in difficulties, he quietly uses induction to help out [Bird on Popper]
Particulars can be verified or falsified, but general statements can only be falsified (conclusively) [Popper]
Unfalsifiability may be a failure in an empirical theory, but it is a virtue in metaphysics [Lowe]
A proposition such as 'some swans are purple' cannot be falsified, only verified [Baggini /Fosl]
The discoverers of Neptune didn't change their theory because of an anomaly [Okasha]
Science mostly aims at confirming theories, rather than falsifying them [Okasha]
Why abandon a theory if you don't have a better one? [Gorham]
If a theory is more informative it is less probable [Gorham]
Falsificationism would be naive if even a slight discrepancy in evidence killed a theory [McGrew]
Smoking disposes towards cancer; smokers without cancer do not falsify this claim [Mumford/Anjum]