Combining Texts

All the ideas for 'Logical Consequence', '23: Book of Isaiah' and 'A Philosophy of Boredom'

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22 ideas

1. Philosophy / B. History of Ideas / 5. Later European Thought
9307 Modern Western culture suddenly appeared in Jena in the 1790s [Svendsen]
1. Philosophy / D. Nature of Philosophy / 2. Invocation to Philosophy
7493 Let us reason together, saith the Lord [Isaiah]
1. Philosophy / F. Analytic Philosophy / 7. Limitations of Analysis
9297 You can't understand love in terms of 'if and only if...' [Svendsen]
4. Formal Logic / A. Syllogistic Logic / 2. Syllogistic Logic
10688 'Equivocation' is when terms do not mean the same thing in premises and conclusion [Beall/Restall]
5. Theory of Logic / A. Overview of Logic / 4. Pure Logic
10690 Formal logic is invariant under permutations, or devoid of content, or gives the norms for thought [Beall/Restall]
5. Theory of Logic / B. Logical Consequence / 2. Types of Consequence
10691 Logical consequence needs either proofs, or absence of counterexamples [Beall/Restall]
5. Theory of Logic / B. Logical Consequence / 4. Semantic Consequence |=
10695 Logical consequence is either necessary truth preservation, or preservation based on interpretation [Beall/Restall]
5. Theory of Logic / B. Logical Consequence / 8. Material Implication
10689 A step is a 'material consequence' if we need contents as well as form [Beall/Restall]
5. Theory of Logic / I. Semantics of Logic / 3. Logical Truth
10696 A 'logical truth' (or 'tautology', or 'theorem') follows from empty premises [Beall/Restall]
5. Theory of Logic / J. Model Theory in Logic / 1. Logical Models
10693 Models are mathematical structures which interpret the non-logical primitives [Beall/Restall]
6. Mathematics / B. Foundations for Mathematics / 2. Proof in Mathematics
10692 Hilbert proofs have simple rules and complex axioms, and natural deduction is the opposite [Beall/Restall]
12. Knowledge Sources / B. Perception / 2. Qualities in Perception / e. Primary/secondary critique
9308 If subjective and objective begin to merge, then so do primary and secondary qualities [Svendsen]
18. Thought / A. Modes of Thought / 3. Emotions / b. Types of emotion
9309 Emotions have intentional objects, while a mood is objectless [Svendsen]
22. Metaethics / B. Value / 2. Values / e. Death
9304 Death appears to be more frightening the less one has lived [Svendsen]
23. Ethics / F. Existentialism / 4. Boredom
9298 We can be unaware that we are bored [Svendsen]
9301 Boredom is so radical that suicide could not overcome it; only never having existed would do it [Svendsen]
9302 We are bored because everything comes to us fully encoded, and we want personal meaning [Svendsen]
9310 The profoundest boredom is boredom with boredom [Svendsen]
24. Political Theory / B. Nature of a State / 1. Purpose of a State
9311 We have achieved a sort of utopia, and it is boring, so that is the end of utopias [Svendsen]
24. Political Theory / D. Ideologies / 9. Communism
9303 The concept of 'alienation' seems no longer applicable [Svendsen]
27. Natural Reality / E. Cosmology / 1. Cosmology
7608 The world is established, and cannot be moved [Isaiah]
28. God / A. Divine Nature / 1. God
7343 Beside me there is no God [Isaiah]