20 ideas
| 22701 | Jokes can sometimes be funny because they are offensive [Jacobson,D] |
| Full Idea: Sometimes it is exactly what is offensive about a joke that makes it funny. | |
| From: Daniel Jacobson (Ethical Criticism and the Vice of Moderation [2006], 'emotional') | |
| A reaction: Jacobson offers this in support of his immoralist view, that immoral literature can be aesthetically successful. It is uncomfortable to find yourself laughing at a joke of which you disapprove. |
| 19115 | You can 'rebut' an argument's conclusion, or 'undercut' its premises [Antonelli] |
| Full Idea: A 'rebut' of an argument establishes that its conclusion is not the case. An 'undercut' of the argument shows that the premises do not support that conclusion. | |
| From: G. Aldo Antonelli (Non-Monotonic Logic [2014], 3.2) |
| 19119 | We infer that other objects are like some exceptional object, if they share some of its properties [Antonelli] |
| Full Idea: The exceptional status of an object with respect to some default is more likely to spread to other objects if they share properties with that object that may play a role in explaining the exceptional status. | |
| From: G. Aldo Antonelli (Non-Monotonic Logic [2014], 4) | |
| A reaction: This is an example of the sort of rational behaviour we exhibit, and which a 'real life' logic would somehow need to capture. I would suggest the essentialist logic designed by Kit Fine as a first port of call. |
| 19111 | Reasoning may be defeated by new premises, or by finding out more about the given ones [Antonelli] |
| Full Idea: Most defeasible reasoning is externally dynamic, affected by the addition of further premises. But there is also an internal (or 'diachronic') dynamic, when further analysis reveals more about the given premises. | |
| From: G. Aldo Antonelli (Non-Monotonic Logic [2014], 1) |
| 19114 | Should we accept Floating Conclusions, derived from two arguments in conflict? [Antonelli] |
| Full Idea: There is much discussion of whether Floating Conclusions should be derived, given that they were derived from two arguments which conflict with one another. | |
| From: G. Aldo Antonelli (Non-Monotonic Logic [2014], 2.3) |
| 19113 | Weakest Link Principle: prefer the argument whose weakest link is the stronger [Antonelli] |
| Full Idea: In the Weakest Link Principle, an argument is preferred to another conflicting argument if its weakest defeasible link is stronger than the weakest defeasible link in the conflicting argument. | |
| From: G. Aldo Antonelli (Non-Monotonic Logic [2014], 2.1) | |
| A reaction: [He cites John Pollock 1991] This sounds like the elementary principle applied when choosing a rope by which to hang a large weight above your head. It gets non-monotonic logic off the ground - if you know how to evaluate 'weakest'. |
| 19116 | Non-monotonic core: Reflexivity, Cut, Cautious Monotonicity, Left Logical Equivalence, Right Weakening [Antonelli] |
| Full Idea: Conservative core of non-monotonic logic:Reflexivity (p proves p), Cut (if p proves q, it proves their joint implications), Cautious Monotonicity, Left Logical Equivalence (equivalences have same consequences), Right Weakening (non-m preserves classical). | |
| From: G. Aldo Antonelli (Non-Monotonic Logic [2014], 3.5.1) | |
| A reaction: [Highly compressed, and without symbols] |
| 19117 | We can rank a formula by the level of surprise if it were to hold [Antonelli] |
| Full Idea: We can think of an 'ordinal ranking function' κ([φ)] as the level of surprise we would face were φ to hold, up to maximal surprise. | |
| From: G. Aldo Antonelli (Non-Monotonic Logic [2014], 3.5.2) | |
| A reaction: This suggests that Bayes's Theorem might be relevant to non-monotonic logic. This suggests that registering surprise would need to be an important feature of robot behaviour. |
| 19118 | People don't actually use classical logic, but may actually use non-monotonic logic [Antonelli] |
| Full Idea: Test subjects seem to perform very poorly in various reasoning tests (Wason Selection, Suppression Task), suggesting logic has a subordinate role, but this may be using classical logic, where non-monotonic logics would be more appropriate. | |
| From: G. Aldo Antonelli (Non-Monotonic Logic [2014], 4) | |
| A reaction: Fred Sommers presents his Term Logic (based on Aristotle) as closer to how people actually reason. It is certainly crazy to infer that most people's everyday reasoning is irrational. Induction is highly rational; it's just not deductive. |
| 19110 | In classical logic the relation |= has Monotony built into its definition [Antonelli] |
| Full Idea: In classical logic, Monotony follows immediately from the nature of the relation |=, for Γ |= φ holds precisely when φ is true on every interpretation on which all sentences in Γ are true. | |
| From: G. Aldo Antonelli (Non-Monotonic Logic [2014], 1) | |
| A reaction: That is, semantic consequence (|=) is defined in terms of a sentence (φ) always being true if some other bunch of sentences (Γ) are true. Hence the addition of further sentences to Γ will make no difference - which is Monotony. |
| 19112 | Cautious Monotony ignores proved additions; Rational Monotony fails if the addition's negation is proved [Antonelli] |
| Full Idea: Basic Monotony: something stays proved if further premises are added. Cautious Monotony: the addition of something which has been proved makes no difference. Rational Monotony: it stays proved as long as the addition's negation hasn't been proved. | |
| From: G. Aldo Antonelli (Non-Monotonic Logic [2014], 1) | |
| A reaction: [A compressed and non-symbolic summary] |
| 21554 | Sets always exceed terms, so all the sets must exceed all the sets [Lackey] |
| Full Idea: Cantor proved that the number of sets in a collection of terms is larger than the number of terms. Hence Cantor's Paradox says the number of sets in the collection of all sets must be larger than the number of sets in the collection of all sets. | |
| From: Douglas Lackey (Intros to Russell's 'Essays in Analysis' [1973], p.127) | |
| A reaction: The sets must count as terms in the next iteration, but that is a normal application of the Power Set axiom. |
| 21553 | It seems that the ordinal number of all the ordinals must be bigger than itself [Lackey] |
| Full Idea: The ordinal series is well-ordered and thus has an ordinal number, and a series of ordinals to a given ordinal exceeds that ordinal by 1. So the series of all ordinals has an ordinal number that exceeds its own ordinal number by 1. | |
| From: Douglas Lackey (Intros to Russell's 'Essays in Analysis' [1973], p.127) | |
| A reaction: Formulated by Burali-Forti in 1897. |
| 22703 | We don't often respond to events in art as if they were real events [Jacobson,D] |
| Full Idea: We routinely do not respond to art as if we were as if we were real-life spectators of its events. | |
| From: Daniel Jacobson (Ethical Criticism and the Vice of Moderation [2006], 'rejection') | |
| A reaction: This strikes me as one of the basic facts about aesthetics, and especially of narrative art. People sometimes encounter terrible events on the street, only to find someone is making a film. |
| 22702 | Audiences can be too moral [Jacobson,D] |
| Full Idea: An audience can be overly moralistic. | |
| From: Daniel Jacobson (Ethical Criticism and the Vice of Moderation [2006], 'emotional') | |
| A reaction: People can be too moral in real life as well. Goody Two Shoes. |
| 22696 | 'Autonomism' says the morality is irrelevant to the aesthetics [Jacobson,D] |
| Full Idea: 'Autonomism' is the theory that the intrinsic moral merits and defects of an artwork are irrelevant to its aesthetic value. | |
| From: Daniel Jacobson (Ethical Criticism and the Vice of Moderation [2006], Intro) | |
| A reaction: This contrasts with 'moralism', which says the ethics is part of the aesthetics. Autonomism seems to be the modern academic label for art for art's sake. In nineteenth century novels the ethics are central; in modernist novels they seem to be irrelevant. |
| 22697 | Moral defects of art can be among its aesthetic virtues [Jacobson,D] |
| Full Idea: To put my claim most provocatively: the moral defects in a work of art can be among its aesthetic virtues. This claim has been called 'immoralism'. | |
| From: Daniel Jacobson (Ethical Criticism and the Vice of Moderation [2006], Intro) | |
| A reaction: To describe sympathetic descriptions of vile moral behaviour as 'defects' may be a misunderstanding. If a work sets out to promote wickedness, then its wickedness isn't a defect in the work. It could be a masterpiece of corruption. |
| 22700 | Immoral art encourages immoral emotions [Jacobson,D] |
| Full Idea: Humean moralism includes the view that immoral art prescribes unethical emotional responses. | |
| From: Daniel Jacobson (Ethical Criticism and the Vice of Moderation [2006], 'emotional') | |
| A reaction: [He cites Hume's 'On the Standard of Taste'] 'Prescribes' is tricky. Is a vivid description of wicked events, given without comment, a prescription? What if the commentary condemns, but the description entices? Trust the work itself, said Lawrence. |
| 22699 | Moderate moralism says moral qualities can sometimes also be aesthetic qualities [Jacobson,D] |
| Full Idea: Noël Carroll's moderate moralism maintains that some moral defects in artworks are aesthetic defects, and some moral virtues are aesthetic merits. | |
| From: Daniel Jacobson (Ethical Criticism and the Vice of Moderation [2006], 'How moderate') | |
| A reaction: I'm beginning to think that moralist critics are confusing morality and wisdom. We don't admire novels for hammering on about goodness. We admire their insight into characters and actions, of which the most interesting aspects happen to be moral. |
| 22698 | We can judge art ethically, or rate its ethical influence, or assess its quality via its ethics [Jacobson,D] |
| Full Idea: Ethical criticism includes 1) ethical judgements of art works, 2) assessment of an art work's role in moral education, or 3) bringing moral praise or censure to bear on the aesthetic evaluation. | |
| From: Daniel Jacobson (Ethical Criticism and the Vice of Moderation [2006], 'What is') | |
| A reaction: [a compressed summary of Jacobson. He cites Levinson 1998 and Carroll 2000 as examples of ethical criticism] |