Combining Texts

All the ideas for 'Gentzen's Analysis of First-Order Proofs', 'On the Jewish Question' and 'Exigency to Exist in Essences'

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8 ideas

5. Theory of Logic / A. Overview of Logic / 1. Overview of Logic

13831

Logic is based on transitions between sentences [Prawitz]

5. Theory of Logic / E. Structures of Logic / 2. Logical Connectives / a. Logical connectives

13825

Natural deduction introduction rules may represent 'definitions' of logical connectives [Prawitz]

5. Theory of Logic / H. Proof Systems / 4. Natural Deduction

13823

In natural deduction, inferences are atomic steps involving just one logical constant [Prawitz]

7. Existence / A. Nature of Existence / 5. Reason for Existence

19400

Possibles demand existence, so as many of them as possible must actually exist [Leibniz]

19401

God's sufficient reason for choosing reality is in the fitness or perfection of possibilities [Leibniz]

10. Modality / E. Possible worlds / 1. Possible Worlds / a. Possible worlds

19402

The actual universe is the richest composite of what is possible [Leibniz]

24. Political Theory / D. Ideologies / 9. Communism

21989

Man is dominated by money, which is the essence of his alienation [Marx]

25. Social Practice / C. Rights / 1. Basis of Rights

20519

Marxists say liberal rights are confrontational, and liberal equality is a sham [Marx, by Wolff,J]