I 359
Theory/Biology/Mayr: there are phenomena for which there are simply no theories yet. For example the orientation of the carrier pigeons.
I 81
Hempel/Oppenheim: (1948)
(1) deductive nomological model (D N model).
Modification (John Beatty 1981)
(2):"Semantic conception of the theoretical structure": a...
I 81
... theory is the definition of a system. Theories are neither permanent nor general in nature. They are compatible with a variety of solutions and evolutionary character.
I 84
External factors: For example, the fact that Wallace and Darwin came to practically the same results in such different ways makes it clear that external factors are irrelevant for the formation of theory.
I 93
Theory/Hypothesis/Mayr: Philosophers attach importance to this distinction.
Fact/Theory/Law/Mayr: after the discovery of Pluto, a theory became a fact. The laws of thermodynamics could also be described as facts.
For example, that birds have feathers is a fact and not a law.
I 96
Biology/Mayr: concepts play a greater role than laws here.
I 107
Theory/Mayr: often a completely new cause is postulated, although much of the old theory remains intact.
I 138
Theory: one and the same theory can be far more revolutionary in some sciences than in others. For example plate tectonics.
I 140
Changes in concepts can have a much greater impact than discoveries: Mendel's inheritance, Darwin's evolution, (This argument comes from Popper).
I 141
Paradigm (Kuhn)/Mayr: Comparison with platonic eidos: only to replace, not to delete. Variations are just coincidences.
I 146
Theory: some theories are only accepted long after they have been established. Reasons:
1. Different series of indications lead to different conclusions
2. Different ideologies:
For example, many French were easy for Lamarck...
3. At one point in time, several explanations can interpret a phenomenon equally well. Long distance orientation of birds: sun, magnetic field of the earth, sense of smell, other factors.
Sometimes there are several possible answers.
I 149
Science: most of the questions about "what " or "how" are accessible to science. Not so the question of why.
Vannevar Bush: "Science is an endless borderland".
1. C.G. Hempel, P. Oppenheim, (1948). Studies in the Logic of Explanation. In. Phil. Scie. 1, pp. 135-175.
2. J. Beatty (1995). The evolutionary contingency Thesis. In: Wolters,G. Lennox, J. (Eds.) Concepts, theories, and Rationality in the Biological Sciences. Pittsburgh,. University of Pittburgh Press. pp. 45-81.
