Combining Texts

All the ideas for 'Classical Cosmology (frags)', 'Intro to 'Essays on Actions and Events'' and 'works'

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9 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]

17. Mind and Body / E. Mind as Physical / 5. Causal Argument

6383	Cause unites our picture of the universe; without it, mental and physical will separate [Davidson]

20. Action / B. Preliminaries of Action / 2. Willed Action / d. Weakness of will

6385	The causally strongest reason may not be the reason the actor judges to be best [Davidson]

20. Action / C. Motives for Action / 3. Acting on Reason / a. Practical reason

6384	The notion of cause is essential to acting for reasons, intentions, agency, akrasia, and free will [Davidson]

27. Natural Reality / E. Cosmology / 1. Cosmology

5994	Is the cosmos open or closed, mechanical or teleological, alive or inanimate, and created or eternal? [Robinson,TM, by PG]