85 ideas
21887 | Derrida focuses on other philosophers, rather than on science [Derrida] |
21888 | Philosophy is just a linguistic display [Derrida] |
21896 | Philosophy aims to build foundations for thought [Derrida, by May] |
21893 | Philosophy is necessarily metaphorical, and its writing is aesthetic [Derrida] |
18835 | Logic doesn't have a metaphysical basis, but nor can logic give rise to the metaphysics [Rumfitt] |
20925 | Hermeneutics blunts truth, by conforming it to the interpreter [Derrida, by Zimmermann,J] |
21892 | Interpretations can be interpreted, so there is no original 'meaning' available [Derrida] |
20934 | Hermeneutics is hostile, trying to overcome the other person's difference [Derrida, by Zimmermann,J] |
21895 | Structuralism destroys awareness of dynamic meaning [Derrida] |
21934 | The idea of being as persistent presence, and meaning as conscious intelligibility, are self-destructive [Derrida, by Glendinning] |
21881 | We aim to explore the limits of expression (as in Mallarmé's poetry) [Derrida] |
21883 | Sincerity can't be verified, so fiction infuses speech, and hence reality also [Derrida] |
21882 | Sentences are contradictory, as they have opposite meanings in some contexts [Derrida] |
18819 | The idea that there are unrecognised truths is basic to our concept of truth [Rumfitt] |
18486 | We might define truth as arising from the truth-maker relation [MacBride] |
4756 | Derrida says that all truth-talk is merely metaphor [Derrida, by Engel] |
21877 | True thoughts are inaccessible, in the subconscious, prior to speech or writing [Derrida] |
18484 | Phenomenalists, behaviourists and presentists can't supply credible truth-makers [MacBride] |
18466 | If truthmaking is classical entailment, then anything whatsoever makes a necessary truth [MacBride] |
18473 | 'Maximalism' says every truth has an actual truthmaker [MacBride] |
18481 | Maximalism follows Russell, and optimalism (no negative or universal truthmakers) follows Wittgenstein [MacBride] |
18483 | The main idea of truth-making is that what a proposition is about is what matters [MacBride] |
18479 | There are different types of truthmakers for different types of negative truth [MacBride] |
18477 | There aren't enough positive states out there to support all the negative truths [MacBride] |
18826 | 'True at a possibility' means necessarily true if what is said had obtained [Rumfitt] |
18482 | Optimalists say that negative and universal are true 'by default' from the positive truths [MacBride] |
18474 | Does 'this sentence has no truth-maker' have a truth-maker? Reductio suggests it can't have [MacBride] |
18485 | Even idealists could accept truthmakers, as mind-dependent [MacBride] |
18490 | Maybe 'makes true' is not an active verb, but just a formal connective like 'because'? [MacBride] |
18493 | Truthmaker talk of 'something' making sentences true, which presupposes objectual quantification [MacBride] |
18803 | Semantics for propositions: 1) validity preserves truth 2) non-contradition 3) bivalence 4) truth tables [Rumfitt] |
18814 | 'Absolute necessity' would have to rest on S5 [Rumfitt] |
18798 | It is the second-order part of intuitionistic logic which actually negates some classical theorems [Rumfitt] |
18799 | Intuitionists can accept Double Negation Elimination for decidable propositions [Rumfitt] |
18830 | Most set theorists doubt bivalence for the Continuum Hypothesis, but still use classical logic [Rumfitt] |
18843 | The iterated conception of set requires continual increase in axiom strength [Rumfitt] |
18836 | A set may well not consist of its members; the empty set, for example, is a problem [Rumfitt] |
18837 | A set can be determinate, because of its concept, and still have vague membership [Rumfitt] |
18845 | If the totality of sets is not well-defined, there must be doubt about the Power Set Axiom [Rumfitt] |
18815 | Logic is higher-order laws which can expand the range of any sort of deduction [Rumfitt] |
18805 | Classical logic rules cannot be proved, but various lines of attack can be repelled [Rumfitt] |
18804 | The case for classical logic rests on its rules, much more than on the Principle of Bivalence [Rumfitt] |
18827 | If truth-tables specify the connectives, classical logic must rely on Bivalence [Rumfitt] |
18813 | Logical consequence is a relation that can extended into further statements [Rumfitt] |
18808 | Normal deduction presupposes the Cut Law [Rumfitt] |
18840 | When faced with vague statements, Bivalence is not a compelling principle [Rumfitt] |
18489 | Connectives link sentences without linking their meanings [MacBride] |
18802 | In specifying a logical constant, use of that constant is quite unavoidable [Rumfitt] |
18476 | 'A is F' may not be positive ('is dead'), and 'A is not-F' may not be negative ('is not blind') [MacBride] |
21878 | Names have a subjective aspect, especially the role of our own name [Derrida] |
21889 | 'I' is the perfect name, because it denotes without description [Derrida] |
21879 | Even Kripke can't explain names; the word is the thing, and the thing is the word [Derrida] |
18800 | Introduction rules give deduction conditions, and Elimination says what can be deduced [Rumfitt] |
18809 | Logical truths are just the assumption-free by-products of logical rules [Rumfitt] |
18807 | Monotonicity means there is a guarantee, rather than mere inductive support [Rumfitt] |
18842 | Maybe an ordinal is a property of isomorphic well-ordered sets, and not itself a set [Rumfitt] |
18834 | Infinitesimals do not stand in a determinate order relation to zero [Rumfitt] |
18846 | Cantor and Dedekind aimed to give analysis a foundation in set theory (rather than geometry) [Rumfitt] |
18480 | Maybe it only exists if it is a truthmaker (rather than the value of a variable)? [MacBride] |
18471 | Different types of 'grounding' seem to have no more than a family resemblance relation [MacBride] |
18472 | Which has priority - 'grounding' or 'truth-making'? [MacBride] |
18475 | Russell allows some complex facts, but Wittgenstein only allows atomic facts [MacBride] |
18839 | An object that is not clearly red or orange can still be red-or-orange, which sweeps up problem cases [Rumfitt] |
18838 | The extension of a colour is decided by a concept's place in a network of contraries [Rumfitt] |
18816 | Metaphysical modalities respect the actual identities of things [Rumfitt] |
18478 | Wittgenstein's plan to show there is only logical necessity failed, because of colours [MacBride] |
18825 | S5 is the logic of logical necessity [Rumfitt] |
18828 | If two possibilities can't share a determiner, they are incompatible [Rumfitt] |
18824 | Since possibilities are properties of the world, calling 'red' the determination of a determinable seems right [Rumfitt] |
18821 | Possibilities are like possible worlds, but not fully determinate or complete [Rumfitt] |
18831 | Medieval logicians said understanding A also involved understanding not-A [Rumfitt] |
18820 | In English 'evidence' is a mass term, qualified by 'little' and 'more' [Rumfitt] |
21890 | Heidegger showed that passing time is the key to consciousness [Derrida] |
21880 | 'Tacit theory' controls our thinking (which is why Freud is important) [Derrida] |
21884 | Capacity for repetitions is the hallmark of language [Derrida] |
21935 | The sign is only conceivable as a movement between elusive presences [Derrida] |
21930 | For Aristotle all proper nouns must have a single sense, which is the purpose of language [Derrida] |
21933 | Writing functions even if the sender or the receiver are absent [Derrida, by Glendinning] |
21886 | Meanings depend on differences and contrasts [Derrida] |
21894 | Madness and instability ('the demonic hyperbole') lurks in all language [Derrida] |
18817 | We understand conditionals, but disagree over their truth-conditions [Rumfitt] |
21931 | 'Dissemination' is opposed to polysemia, since that is irreducible, because of multiple understandings [Derrida, by Glendinning] |
21885 | Words exist in 'spacing', so meanings are never synchronic except in writing [Derrida] |
18829 | The truth grounds for 'not A' are the possibilities incompatible with truth grounds for A [Rumfitt] |
21891 | The good is implicitly violent (against evil), so there is no pure good [Derrida] |