Combining Texts

All the ideas for 'God and Human Attributes', 'Identity through Possible Worlds' and 'works'

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8 ideas

5. Theory of Logic / A. Overview of Logic / 2. History of Logic

11022

Gentzen introduced a natural deduction calculus (NK) in 1934 [Gentzen, by Read]

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

11065

The inferential role of a logical constant constitutes its meaning [Gentzen, by Hanna]

11023

The logical connectives are 'defined' by their introduction rules [Gentzen]

11213

Each logical symbol has an 'introduction' rule to define it, and hence an 'elimination' rule [Gentzen]

6. Mathematics / B. Foundations for Mathematics / 4. Axioms for Number / g. Incompleteness of Arithmetic

10067

Gentzen proved the consistency of arithmetic from assumptions beyond arithmetic [Gentzen, by Musgrave]

9. Objects / D. Essence of Objects / 14. Knowledge of Essences

11966

If there are essential properties, how do you find out what they are? [Chisholm]

10. Modality / E. Possible worlds / 3. Transworld Objects / a. Transworld identity

11965

Could possible Adam gradually transform into Noah, and vice versa? [Chisholm]

28. God / B. Proving God / 2. Proofs of Reason / c. Moral Argument

20713

God must be fit for worship, but worship abandons morally autonomy, but there is no God [Rachels, by Davies,B]