Combining Texts

All the ideas for 'Science and Method', 'Freedom to Act' and 'On the Syllogism IV'

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

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4 ideas

5. Theory of Logic / E. Structures of Logic / 6. Relations in Logic

17744

De Morgan started the study of relations and their properties [De Morgan, by Walicki]

13501

De Morgan found inferences involving relations, which eluded Aristotle's syllogistic [De Morgan, by Hart,WD]

6. Mathematics / A. Nature of Mathematics / 2. Geometry

10245

One geometry cannot be more true than another [Poincaré]

20. Action / C. Motives for Action / 3. Acting on Reason / c. Reasons as causes

19698

Deviant causal chain: a reason causes an action, but isn't the reason for which it was performed [Davidson, by Neta]