more from this thinker
|
more from this text
Single Idea 18723
[filed under theme 5. Theory of Logic / E. Structures of Logic / 2. Logical Connectives / c. not
]
Full Idea
Correct use does not imply the ability to make the rules explicit. Understanding 'not' is like understanding a move in chess.
Gist of Idea
We may correctly use 'not' without making the rule explicit
Source
Ludwig Wittgenstein (Lectures 1930-32 (student notes) [1931], B XII.1)
Book Ref
Wittgenstein,Ludwig: 'Lectures in Cambridge 1930-32', ed/tr. Lee,Desmond [Blackwell 1980], p.53
The
13 ideas
with the same theme
[role of 'not' in systems of logic]:
20788
|
The contradictory of a contradictory is an affirmation
[Stoic school, by Diog. Laertius]
|
22017
|
Normativity needs the possibility of negation, in affirmation and denial
[Fichte, by Pinkard]
|
21777
|
Negation of negation doubles back into a self-relationship
[Hegel, by Houlgate]
|
16489
|
Is it possible to state every possible truth about the whole course of nature without using 'not'?
[Russell]
|
18722
|
Negations are not just reversals of truth-value, since that can happen without negation
[Wittgenstein on Russell]
|
18723
|
We may correctly use 'not' without making the rule explicit
[Wittgenstein]
|
23493
|
'Not' isn't an object, because not-not-p would then differ from p
[Wittgenstein]
|
23066
|
Negation doesn't arise from reasoning, but from deep instincts
[Cioran]
|
18903
|
Sommers promotes the old idea that negation basically refers to terms
[Sommers, by Engelbretsen]
|
18801
|
Classical negation is circular, if it relies on knowing negation-conditions from truth-conditions
[Dummett]
|
19052
|
Natural language 'not' doesn't apply to sentences
[Dummett]
|
18476
|
'A is F' may not be positive ('is dead'), and 'A is not-F' may not be negative ('is not blind')
[MacBride]
|
18908
|
Standard logic only negates sentences, even via negated general terms or predicates
[Engelbretsen]
|