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All the ideas for 'Logical Consequence', 'De Re Aedificatoria' and 'The Moral Problem'

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29 ideas

1. Philosophy / F. Analytic Philosophy / 4. Conceptual Analysis
23728 Analysis aims to express the full set of platitudes surrounding a given concept [Smith,M]
2. Reason / D. Definition / 1. Definitions
23744 Defining a set of things by paradigms doesn't pin them down enough [Smith,M]
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]
18. Thought / A. Modes of Thought / 5. Rationality / a. Rationality
23743 Capturing all the common sense facts about rationality is almost impossible [Smith,M]
20. Action / C. Motives for Action / 1. Acting on Desires
23739 Goals need desires, and so only desires can motivate us [Smith,M]
23724 A pure desire could be criticised if it were based on a false belief [Smith,M]
23736 A person can have a desire without feeling it [Smith,M]
23723 In the Humean account, desires are not true/false, or subject to any rational criticism [Smith,M]
23735 Subjects may be fallible about the desires which explain their actions [Smith,M]
23738 Humeans (unlike their opponents) say that desires and judgements can separate [Smith,M]
23742 If first- and second-order desires conflict, harmony does not require the second-order to win [Smith,M]
23746 Objective reasons to act might be the systematic desires of a fully rational person [Smith,M]
20. Action / C. Motives for Action / 3. Acting on Reason / a. Practical reason
23733 Motivating reasons are psychological, while normative reasons are external [Smith,M]
23740 Humeans take maximising desire satisfaction as the normative reasons for actions [Smith,M]
23745 We cannot expect even fully rational people to converge on having the same desires for action [Smith,M]
21. Aesthetics / A. Aesthetic Experience / 4. Beauty
18555 The beautiful is that from which nothing can be subtracted and to which nothing can be added [Alberti]
22. Metaethics / A. Ethics Foundations / 1. Nature of Ethics / h. Against ethics
23731 'Externalists' say moral judgements are not reasons, and maybe not even motives [Smith,M]
23732 A person could make a moral judgement without being in any way motivated by it [Smith,M]
22. Metaethics / A. Ethics Foundations / 2. Source of Ethics / b. Rational ethics
23729 Moral internalism says a judgement of rightness is thereby motivating [Smith,M]
23730 'Rationalism' says the rightness of an action is a reason to perform it [Smith,M]
22. Metaethics / A. Ethics Foundations / 2. Source of Ethics / h. Expressivism
23727 Expressivists count attitudes as 'moral' if they concern features of things, rather than their mere existence [Smith,M]
22. Metaethics / B. Value / 1. Nature of Value / a. Nature of value
23741 Is valuing something a matter of believing or a matter of desiring? [Smith,M]