Ideas of Karl Popper, by Theme

[Austrian, 1902 - 1994, Born in Vienna. Refugee. Professor at the London School of Economics.]

idea number gives full details    |    back to list of philosophers    |     expand these ideas
8. Modes of Existence / C. Powers and Dispositions / 7. Against Powers
Propensities are part of a situation, not part of the objects
9. Objects / D. Essence of Objects / 11. Essence of Artefacts
Human artefacts may have essences, in their purposes
9. Objects / D. Essence of Objects / 15. Against Essentialism
Popper felt that ancient essentialism was a bar to progress
14. Science / A. Basis of Science / 6. Falsification
Particulars can be verified or falsified, but general statements can only be falsified (conclusively)
Falsification is the criterion of demarcation between science and non-science
We don't only reject hypotheses because we have falsified them
If falsification requires logical inconsistency, then probabilistic statements can't be falsified
When Popper gets in difficulties, he quietly uses induction to help out
14. Science / B. Scientific Theories / 2. Aim of Science
Good theories have empirical content, explain a lot, and are not falsified
14. Science / C. Induction / 3. Limits of Induction
There is no such thing as induction
14. Science / D. Explanation / 3. Best Explanation / b. Ultimate explanation
Science does not aim at ultimate explanations
26. Natural Theory / D. Laws of Nature / 8. Scientific Essentialism / a. Scientific essentialism
Galilean science aimed at true essences, as the ultimate explanations
26. Natural Theory / D. Laws of Nature / 8. Scientific Essentialism / e. Anti scientific essentialism
Essentialist views of science prevent further questions from being raised