Combining Philosophers

All the ideas for H.Putnam/P.Oppenheim, Alonzo Church and Peter B. Lewis

expand these ideas     |    start again     |     specify just one area for these philosophers

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4 ideas

5. Theory of Logic / K. Features of Logics / 7. Decidability

18758

Validity is provable, but invalidity isn't, because the model is infinite [Church, by McGee]

11. Knowledge Aims / C. Knowing Reality / 3. Idealism / d. Absolute idealism

21912

Fichte, Schelling and Hegel rejected transcendental idealism [Lewis,PB]

21911

Fichte, Hegel and Schelling developed versions of Absolute Idealism [Lewis,PB]

14. Science / D. Explanation / 2. Types of Explanation / j. Explanations by reduction

20653

Six reduction levels: groups, lives, cells, molecules, atoms, particles [Putnam/Oppenheim, by Watson]