Combining Texts

All the ideas for 'A Completeness Theorem in Modal Logic', 'The Correspondence Theory of Truth' and 'Commentary on Euclid's 'Elements''

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14 ideas

3. Truth / A. Truth Problems / 5. Truth Bearers
3745 Must sentences make statements to qualify for truth? [O'Connor]
3. Truth / C. Correspondence Truth / 1. Correspondence Truth
3742 Beliefs must match facts, but also words must match beliefs [O'Connor]
3. Truth / F. Semantic Truth / 2. Semantic Truth
3744 The semantic theory requires sentences as truth-bearers, not propositions [O'Connor]
3749 What does 'true in English' mean? [O'Connor]
4. Formal Logic / D. Modal Logic ML / 1. Modal Logic
10163 Propositional modal logic has been proved to be complete [Kripke, by Feferman/Feferman]
4. Formal Logic / D. Modal Logic ML / 3. Modal Logic Systems / a. Systems of modal logic
10760 With possible worlds, S4 and S5 are sound and complete, but S1-S3 are not even sound [Kripke, by Rossberg]
4. Formal Logic / D. Modal Logic ML / 7. Barcan Formula
16189 The variable domain approach to quantified modal logic invalidates the Barcan Formula [Kripke, by Simchen]
15132 The Barcan formulas fail in models with varying domains [Kripke, by Williamson]
5. Theory of Logic / A. Overview of Logic / 4. Pure Logic
3746 Logic seems to work for unasserted sentences [O'Connor]
7. Existence / B. Change in Existence / 4. Events / c. Reduction of events
3747 Events are fast changes which are of interest to us [O'Connor]
11. Knowledge Aims / A. Knowledge / 4. Belief / a. Beliefs
3743 We can't contemplate our beliefs until we have expressed them [O'Connor]
3748 Without language our beliefs are particular and present [O'Connor]
14. Science / D. Explanation / 2. Types of Explanation / g. Causal explanations
13165 Geometrical proofs do not show causes, as when we prove a triangle contains two right angles [Proclus]
18. Thought / E. Abstraction / 1. Abstract Thought
9569 The origin of geometry started in sensation, then moved to calculation, and then to reason [Proclus]