Combining Texts

Ideas for 'fragments/reports', 'The Bhagavad Gita' and 'Tractatus Logico-Philosophicus'

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20 ideas

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

23502

Logic fills the world, to its limits [Wittgenstein]

23504

Logic concerns everything that is subject to law; the rest is accident [Wittgenstein]

5. Theory of Logic / A. Overview of Logic / 3. Value of Logic

6428	Wittgenstein is right that logic is just tautologies [Wittgenstein, by Russell]

5. Theory of Logic / A. Overview of Logic / 4. Pure Logic

11062

Logic is a priori because it is impossible to think illogically [Wittgenstein]

5. Theory of Logic / B. Logical Consequence / 3. Deductive Consequence |-

18277

If q implies p, that is justified by q and p, not by some 'laws' of inference [Wittgenstein]

5. Theory of Logic / C. Ontology of Logic / 1. Ontology of Logic

18162

The propositions of logic are analytic tautologies [Wittgenstein]

5. Theory of Logic / C. Ontology of Logic / 2. Platonism in Logic

7537	Wittgenstein convinced Russell that logic is tautologies, not Platonic forms [Wittgenstein, by Monk]

5. Theory of Logic / D. Assumptions for Logic / 3. Contradiction

23496

Two colours in the same place is ruled out by the logical structure of colour [Wittgenstein]

5. Theory of Logic / D. Assumptions for Logic / 4. Identity in Logic

18154

The sign of identity is not allowed in 'Tractatus' [Wittgenstein, by Bostock]

13429

The identity sign is not essential in logical notation, if every sign has a different meaning [Wittgenstein, by Ramsey]

5. Theory of Logic / E. Structures of Logic / 1. Logical Form

18268

Apparent logical form may not be real logical form [Wittgenstein]

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

10905

My fundamental idea is that the 'logical constants' do not represent [Wittgenstein]

5. Theory of Logic / E. Structures of Logic / 2. Logical Connectives / c. not

23493

'Not' isn't an object, because not-not-p would then differ from p [Wittgenstein]

5. Theory of Logic / E. Structures of Logic / 4. Variables in Logic

7784	'Object' is a pseudo-concept, properly indicated in logic by the variable x [Wittgenstein]

5. Theory of Logic / F. Referring in Logic / 1. Naming / a. Names

23506

Names are primitive, and cannot be analysed [Wittgenstein]

5. Theory of Logic / F. Referring in Logic / 1. Naming / c. Names as referential

7089	A name is primitive, and its meaning is the object [Wittgenstein]

5. Theory of Logic / G. Quantification / 1. Quantification

9467	Wittgenstein tried unsuccessfully to reduce quantifiers to conjunctions and disjunctions [Wittgenstein, by Jacquette]

5. Theory of Logic / H. Proof Systems / 1. Proof Systems

15089

Logical proof just explicates complicated tautologies [Wittgenstein]

5. Theory of Logic / I. Semantics of Logic / 3. Logical Truth

13830

Logical truths are just 'by-products' of the introduction rules for logical constants [Wittgenstein, by Hacking]

5. Theory of Logic / K. Features of Logics / 1. Axiomatisation

19292

Logic doesn't split into primitive and derived propositions; they all have the same status [Wittgenstein]