82 ideas
2512 | Philosophy is a battle against the bewitchment of our intelligence by means of language [Wittgenstein] |
4148 | What is your aim in philosophy? - To show the fly the way out of the fly-bottle [Wittgenstein] |
19199 | Some say metaphysics is a highly generalised empirical study of objects [Tarski] |
19193 | Disputes that fail to use precise scientific terminology are all meaningless [Tarski] |
22490 | Bring words back from metaphysics to everyday use [Wittgenstein] |
6566 | The problem is to explain the role of contradiction in social life [Wittgenstein] |
19179 | For a definition we need the words or concepts used, the rules, and the structure of the language [Tarski] |
19178 | Definitions of truth should not introduce a new version of the concept, but capture the old one [Tarski] |
19177 | A definition of truth should be materially adequate and formally correct [Tarski] |
19186 | A rigorous definition of truth is only possible in an exactly specified language [Tarski] |
19194 | We may eventually need to split the word 'true' into several less ambiguous terms [Tarski] |
19180 | It is convenient to attach 'true' to sentences, and hence the language must be specified [Tarski] |
19181 | In the classical concept of truth, 'snow is white' is true if snow is white [Tarski] |
19196 | Scheme (T) is not a definition of truth [Tarski] |
19183 | Each interpreted T-sentence is a partial definition of truth; the whole definition is their conjunction [Tarski] |
19182 | Use 'true' so that all T-sentences can be asserted, and the definition will then be 'adequate' [Tarski] |
19198 | We don't give conditions for asserting 'snow is white'; just that assertion implies 'snow is white' is true [Tarski] |
19184 | The best truth definition involves other semantic notions, like satisfaction (relating terms and objects) [Tarski] |
19191 | Specify satisfaction for simple sentences, then compounds; true sentences are satisfied by all objects [Tarski] |
19188 | We can't use a semantically closed language, or ditch our logic, so a meta-language is needed [Tarski] |
19189 | The metalanguage must contain the object language, logic, and defined semantics [Tarski] |
10824 | If listing equivalences is a reduction of truth, witchcraft is just a list of witch-victim pairs [Field,H on Tarski] |
19190 | We need an undefined term 'true' in the meta-language, specified by axioms [Tarski] |
19197 | Truth can't be eliminated from universal claims, or from particular unspecified claims [Tarski] |
19185 | Semantics is a very modest discipline which solves no real problems [Tarski] |
19195 | Truth tables give prior conditions for logic, but are outside the system, and not definitions [Tarski] |
19192 | The truth definition proves semantic contradiction and excluded middle laws (not the logic laws) [Tarski] |
18743 | Wittgenstein says we want the grammar of problems, not their first-order logical structure [Wittgenstein, by Horsten/Pettigrew] |
4139 | Naming is a preparation for description [Wittgenstein] |
4946 | A name is not determined by a description, but by a cluster or family [Wittgenstein, by Kripke] |
19187 | The Liar makes us assert a false sentence, so it must be taken seriously [Tarski] |
15106 | Essence is expressed by grammar [Wittgenstein] |
10993 | Ramsey's Test: believe the consequent if you believe the antecedent [Ramsey, by Read] |
14279 | Asking 'If p, will q?' when p is uncertain, then first add p hypothetically to your knowledge [Ramsey] |
6600 | The belief that fire burns is like the fear that it burns [Wittgenstein] |
4153 | Are sense-data the material of which the universe is made? [Wittgenstein] |
6501 | As sense-data are necessarily private, they are attacked by Wittgenstein's objections [Wittgenstein, by Robinson,H] |
11079 | How do I decide when to accept or obey an intuition? [Wittgenstein] |
4160 | One can mistrust one's own senses, but not one's own beliefs [Wittgenstein] |
6894 | Mental terms can be replaced in a sentence by a variable and an existential quantifier [Ramsey] |
19273 | I don't have the opinion that people have minds; I just treat them as such [Wittgenstein] |
5663 | It is irresponsible to generalise from my own case of pain to other people's [Wittgenstein] |
19272 | To imagine another's pain by my own, I must imagine a pain I don't feel, by one I do feel [Wittgenstein] |
4161 | If a lion could talk, we could not understand him [Wittgenstein] |
7392 | If a lion could talk, it would be nothing like other lions [Dennett on Wittgenstein] |
5676 | To say that I 'know' I am in pain means nothing more than that I AM in pain [Wittgenstein] |
4154 | Why are we not aware of the huge gap between mind and brain in ordinary life? [Wittgenstein] |
4158 | An 'inner process' stands in need of outward criteria [Wittgenstein] |
6165 | Every course of action can either accord or conflict with a rule, so there is no accord or conflict [Wittgenstein] |
4143 | One cannot obey a rule 'privately', because that is a practice, not the same as thinking one is obeying [Wittgenstein] |
7092 | If individuals can't tell if they are following a rule, how does a community do it? [Grayling on Wittgenstein] |
4138 | Is white simple, or does it consist of the colours of the rainbow? [Wittgenstein] |
7055 | Externalist accounts of mental content begin in Wittgenstein [Wittgenstein, by Heil] |
12576 | Possessing a concept is knowing how to go on [Wittgenstein, by Peacocke] |
4157 | Concepts direct our interests and investigations, and express those interests [Wittgenstein] |
12606 | Man learns the concept of the past by remembering [Wittgenstein] |
4141 | Various games have a 'family resemblance', as their similarities overlap and criss-cross [Wittgenstein] |
23450 | Wittgenstein rejected his earlier view that the form of language is the form of the world [Wittgenstein, by Morris,M] |
4150 | Asking about verification is only one way of asking about the meaning of a proposition [Wittgenstein] |
6567 | For Wittgenstein, words are defined by their use, just as chess pieces are [Wittgenstein, by Fogelin] |
6169 | We do not achieve meaning and understanding in our heads, but in the world [Wittgenstein, by Rowlands] |
4155 | We all seem able to see quite clearly how sentences represent things when we use them [Wittgenstein] |
4137 | In the majority of cases the meaning of a word is its use in the language [Wittgenstein] |
4142 | To understand a sentence means to understand a language [Wittgenstein] |
4149 | We don't have 'meanings' in our minds in addition to verbal expressions [Wittgenstein] |
4156 | Make the following experiment: say "It's cold here" and mean "It's warm here" [Wittgenstein] |
4145 | How do words refer to sensations? [Wittgenstein] |
4140 | The standard metre in Paris is neither one metre long nor not one metre long [Wittgenstein] |
6166 | Was Wittgenstein's problem between individual and community, or between occasions for an individual? [Rowlands on Wittgenstein] |
7875 | If a brilliant child invented a name for a private sensation, it couldn't communicate it [Wittgenstein] |
4146 | We cannot doublecheck mental images for correctness (or confirm news with many copies of the paper) [Wittgenstein] |
4147 | If we only named pain by our own case, it would be like naming beetles by looking in a private box [Wittgenstein] |
5659 | If the reference is private, that is incompatible with the sense being public [Wittgenstein, by Scruton] |
4152 | Getting from perceptions to words cannot be a private matter; the rules need an institution of use [Wittgenstein] |
4136 | To imagine a language means to imagine a form of life [Wittgenstein] |
4144 | Common human behaviour enables us to interpret an unknown language [Wittgenstein] |
11049 | To communicate, language needs agreement in judgment as well as definition [Wittgenstein] |
6658 | What is left over if I subtract my arm going up from my raising my arm? [Wittgenstein] |
9418 | All knowledge needs systematizing, and the axioms would be the laws of nature [Ramsey] |
9420 | Causal laws result from the simplest axioms of a complete deductive system [Ramsey] |
4151 | Grammar tells what kind of object anything is - and theology is a kind of grammar [Wittgenstein] |
4159 | The human body is the best picture of the human soul [Wittgenstein] |