35 ideas
3695 | Philosophy is a priori if it is anything [Bonjour] |
3651 | Perceiving necessary connections is the essence of reasoning [Bonjour] |
3700 | Coherence can't be validated by appeal to coherence [Bonjour] |
1708 | In "Callias is just/not just/unjust", which of these are contraries? [Aristotle] |
1703 | It is necessary that either a sea-fight occurs tomorrow or it doesn't, though neither option is in itself necessary [Aristotle] |
1704 | Statements are true according to how things actually are [Aristotle] |
22272 | Aristotle's later logic had to treat 'Socrates' as 'everything that is Socrates' [Potter on Aristotle] |
9405 | Square of Opposition: not both true, or not both false; one-way implication; opposite truth-values [Aristotle] |
9728 | Modal Square 1: □P and ¬◊¬P are 'contraries' of □¬P and ¬◊P [Aristotle, by Fitting/Mendelsohn] |
9729 | Modal Square 2: ¬□¬P and ◊P are 'subcontraries' of ¬□P and ◊¬P [Aristotle, by Fitting/Mendelsohn] |
9730 | Modal Square 3: □P and ¬◊¬P are 'contradictories' of ¬□P and ◊¬P [Aristotle, by Fitting/Mendelsohn] |
9731 | Modal Square 4: □¬P and ¬◊P are 'contradictories' of ¬□¬P and ◊P [Aristotle, by Fitting/Mendelsohn] |
9732 | Modal Square 5: □P and ¬◊¬P are 'subalternatives' of ¬□¬P and ◊P [Aristotle, by Fitting/Mendelsohn] |
9733 | Modal Square 6: □¬P and ¬◊P are 'subalternatives' of ¬□P and ◊¬P [Aristotle, by Fitting/Mendelsohn] |
21593 | In talking of future sea-fights, Aristotle rejects bivalence [Aristotle, by Williamson] |
1701 | A prayer is a sentence which is neither true nor false [Aristotle] |
1706 | Non-existent things aren't made to exist by thought, because their non-existence is part of the thought [Aristotle] |
1707 | Maybe necessity and non-necessity are the first principles of ontology [Aristotle] |
3697 | The concept of possibility is prior to that of necessity [Bonjour] |
3704 | Moderate rationalists believe in fallible a priori justification [Bonjour] |
3707 | Our rules of thought can only be judged by pure rational insight [Bonjour] |
3696 | A priori justification requires understanding but no experience [Bonjour] |
3703 | You can't explain away a priori justification as analyticity, and you can't totally give it up [Bonjour] |
3706 | A priori justification can vary in degree [Bonjour] |
3699 | The induction problem blocks any attempted proof of physical statements [Bonjour] |
3701 | Externalist theories of justification don't require believers to have reasons for their beliefs [Bonjour] |
3702 | Externalism means we have no reason to believe, which is strong scepticism [Bonjour] |
3709 | Induction must go beyond the evidence, in order to explain why the evidence occurred [Bonjour] |
3708 | All thought represents either properties or indexicals [Bonjour] |
2337 | For Aristotle meaning and reference are linked to concepts [Aristotle, by Putnam] |
19216 | Propositions (such as 'that dog is barking') only exist if their items exist [Williamson] |
13763 | Spoken sounds vary between people, but are signs of affections of soul, which are the same for all [Aristotle] |
1705 | It doesn't have to be the case that in opposed views one is true and the other false [Aristotle] |
3698 | Indeterminacy of translation is actually indeterminacy of meaning and belief [Bonjour] |
1702 | Things may be necessary once they occur, but not be unconditionally necessary [Aristotle] |