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Single Idea 20388

[filed under theme 1. Philosophy / F. Analytic Philosophy / 3. Analysis of Preconditions ]

Full Idea

A 'necessary' condition for something's being an X is condition that all Xs must satisfy. ...A 'sufficient' condition for something's being an X is a condition that, when satisfied, guarantees that what satisfies it is an X.

Gist of Idea

'Necessary' conditions are requirements, and 'sufficient' conditions are guarantees

Source

Stephen Davies (The Philosophy of Art (2nd ed) [2016], 2.1)

Book Ref

Davies,Stephen: 'The Philosophy of Art (2nd ed)' [Wiley Blackwell 2016], p.24

A Reaction

By summarising this I arrive at the requirement/guarantee formulation, which I am rather pleased with. What is required for rain, and what guarantees rain?

Related Idea

Idea 20389 A definition of a thing gives all the requirements which add up to a guarantee of it [Davies,S]

The 24 ideas from Stephen Davies

20387 Aesthetic experience involves perception, but also imagination and understanding [Davies,S]
20385 The faculty of 'taste' was posited to explain why only some people had aesthetic appreciation [Davies,S]
20386 The sublime is negative in awareness of insignificance, and positive in showing understanding [Davies,S]
20384 The idea that art forms are linked into a single concept began in the 1740s [Davies,S]
20388 'Necessary' conditions are requirements, and 'sufficient' conditions are guarantees [Davies,S]
20389 A definition of a thing gives all the requirements which add up to a guarantee of it [Davies,S]
20391 Feminists warn that ideologies use timeless objective definitions as a tool of repression [Davies,S]
20390 Defining art as representation or expression or form were all undermined by the avant-garde [Davies,S]
20392 'Aesthetic functionalism' says art is what is intended to create aesthetic experiences [Davies,S]
20393 The 'institutional' theory says art is just something appropriately placed in the 'artworld' [Davies,S]
20395 The title of a painting can be vital, and the artist decrees who the portrait represents [Davies,S]
20396 We must know what the work is meant to be, to evaluate the artist's achievement [Davies,S]
20397 If we could perfectly clone the Mona Lisa, the original would still be special [Davies,S]
20398 Art that is multiply instanced may require at least one instance [Davies,S]
20399 Intentionalism says either meaning just is intention, or ('moderate') meaning is successful intention [Davies,S]
20401 The meaning is given by the audience's best guess at the author's intentions [Davies,S]
20402 Music is too definite to be put into words (not too indefinite!) [Davies,S]
20404 Music isn't just sad because it makes the listener feel sad [Davies,S]
20405 Music may be expressive by being 'associated' with other emotional words or events [Davies,S]
20403 It seems unlikely that sad music expresses a composer's sadness; it takes ages to write [Davies,S]
22706 A work which seeks approval for immorality, but alienates the audience, is a failure [Davies,S]
22704 Immorality may or may not be an artistic defect [Davies,S]
22705 If the depiction of evil is glorified, that is an artistic flaw [Davies,S]
22707 It is an artistic defect if excessive moral outrage distorts the story, and narrows our sympathies [Davies,S]