13 ideas
6396 | A sentence is held true because of a combination of meaning and belief [Davidson] |
9540 | A 'value-assignment' (V) is when to each variable in the set V assigns either the value 1 or the value 0 [Hughes/Cresswell] |
9541 | The Law of Transposition says (P→Q) → (¬Q→¬P) [Hughes/Cresswell] |
9543 | The rules preserve validity from the axioms, so no thesis negates any other thesis [Hughes/Cresswell] |
9544 | A system is 'weakly' complete if all wffs are derivable, and 'strongly' if theses are maximised [Hughes/Cresswell] |
11145 | Having a belief involves the possibility of being mistaken [Davidson] |
6397 | The concept of belief can only derive from relationship to a speech community [Davidson] |
6392 | Thought depends on speech [Davidson] |
6393 | A creature doesn't think unless it interprets another's speech [Davidson] |
11144 | Concepts are only possible in a language community [Davidson] |
6395 | An understood sentence can be used for almost anything; it isn't language if it has only one use [Davidson] |
6394 | The pattern of sentences held true gives sentences their meaning [Davidson] |
467 | A virtue is a combination of intelligence, strength and luck [Ion] |