Combining Texts

All the ideas for 'True Method in Philosophy and Theology', 'On the Syllogism IV' and 'Sickness unto Death'

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]

7. Existence / A. Nature of Existence / 6. Criterion for Existence

19393

What is not active is nothing [Leibniz]

16. Persons / B. Nature of the Self / 3. Self as Non-physical

16002

The self is a combination of pairs of attributes: freedom/necessity, infinite/finite, temporal/eternal [Kierkegaard]