22 ideas
13913 | The four 'perfect syllogisms' are called Barbara, Celarent, Darii and Ferio [Engelbretsen/Sayward] |
13914 | Syllogistic logic has one rule: what is affirmed/denied of wholes is affirmed/denied of their parts [Engelbretsen/Sayward] |
13915 | Syllogistic can't handle sentences with singular terms, or relational terms, or compound sentences [Engelbretsen/Sayward] |
13916 | Term logic uses expression letters and brackets, and '-' for negative terms, and '+' for compound terms [Engelbretsen/Sayward] |
13850 | In modern logic all formal validity can be characterised syntactically [Engelbretsen/Sayward] |
21495 | Theoretical and practical politics are both concerned with the best lives for individuals [Russell] |
13849 | Classical logic rests on truth and models, where constructivist logic rests on defence and refutation [Engelbretsen/Sayward] |
13851 | Unlike most other signs, = cannot be eliminated [Engelbretsen/Sayward] |
13852 | Axioms are ω-incomplete if the instances are all derivable, but the universal quantification isn't [Engelbretsen/Sayward] |
3031 | The greatest good is not the achievement of desire, but to desire what is proper [Menedemus, by Diog. Laertius] |
21517 | Individuals need creativity, reverence for others, and self-respect [Russell] |
21522 | Democracy is inadequate without a great deal of devolution [Russell] |
21523 | We would not want UK affairs to be settled by a world parliament [Russell] |
21521 | Anarchy does not maximise liberty [Russell] |
21528 | Groups should be autonomous, with a neutral authority as arbitrator [Russell] |
21526 | Unfortunately ordinary voters can't detect insincerity [Russell] |
21527 | On every new question the majority is always wrong at first [Russell] |
21525 | When the state is the only employer, there is no refuge from the prejudices of other people [Russell] |
21518 | Men unite in pursuit of material things, and idealise greed as part of group loyalty [Russell] |
21519 | We need security and liberty, and then encouragement of creativity [Russell] |
21524 | The right to own land gives a legal right to a permanent income [Russell] |
21520 | That our heaven is a dull place reflects the misery of excessive work in life [Russell] |