Combining Texts

All the ideas for 'fragments/reports', 'The Concept of Logical Consequence' and 'Of Organum or Ars Magna of Thinking'

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10 ideas

1. Philosophy / F. Analytic Philosophy / 1. Nature of Analysis

5021	An idea is analysed perfectly when it is shown a priori that it is possible [Leibniz]

5. Theory of Logic / B. Logical Consequence / 1. Logical Consequence

18812

Split out the logical vocabulary, make an assignment to the rest. It's logical if premises and conclusion match [Tarski, by Rumfitt]

5. Theory of Logic / B. Logical Consequence / 4. Semantic Consequence |=

13344

X follows from sentences K iff every model of K also models X [Tarski]

5. Theory of Logic / J. Model Theory in Logic / 1. Logical Models

13343

A 'model' is a sequence of objects which satisfies a complete set of sentential functions [Tarski]

7. Existence / A. Nature of Existence / 3. Being / d. Non-being

18933

Not-Being obviously doesn't exist, and the five modes of Being are all impossible [Gorgias, by Diog. Laertius]

13. Knowledge Criteria / B. Internal Justification / 4. Foundationalism / d. Rational foundations

5020	Our thoughts are either dependent, or self-evident. All thoughts seem to end in the self-evident [Leibniz]

19. Language / E. Analyticity / 1. Analytic Propositions

13345

Sentences are 'analytical' if every sequence of objects models them [Tarski]

19. Language / F. Communication / 1. Rhetoric

9866	Gorgias says rhetoric is the best of arts, because it enslaves without using force [Gorgias, by Plato]

5864	Destroy seriousness with laughter, and laughter with seriousness [Gorgias]

22. Metaethics / C. The Good / 2. Happiness / d. Routes to happiness

5019	Supreme human happiness is the greatest possible increase of his perfection [Leibniz]