Combining Texts

All the ideas for 'fragments/reports', 'The New Organon' and 'works'

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

---

10 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]

8. Modes of Existence / E. Nominalism / 1. Nominalism / a. Nominalism

16639

Only individual bodies exist [Bacon]

9. Objects / C. Structure of Objects / 2. Hylomorphism / c. Form as causal

16033

There are only individual bodies containing law-based powers, and the Forms are these laws [Bacon]

14. Science / B. Scientific Theories / 2. Aim of Science

21950

Science must clear away the idols of the mind if they are ever going to find the truth [Bacon]

25. Social Practice / E. Policies / 5. Education / b. Education principles

13304

Learned men gain more in one day than others do in a lifetime [Posidonius]

27. Natural Reality / D. Time / 1. Nature of Time / d. Time as measure

20820

Time is an interval of motion, or the measure of speed [Posidonius, by Stobaeus]