17 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] |
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] |
13007 | Archimedes defined a straight line as the shortest distance between two points [Archimedes, by Leibniz] |
22809 | The social contract sees society as constituted by and for individuals [Taylor,C] |
22811 | Assigning a right based on a human capacity implies that the capacity should be developed [Taylor,C] |
22815 | If freedom depends on society and culture, the greatest freedom is in shaping them [Taylor,C] |
22814 | Our reliance on other people close to us does not imply any political obligations [Taylor,C] |
22812 | For most people the primacy of rights mainly concerns freedom [Taylor,C] |
22810 | A right is not just a rule, but also asserts certain ideas of moral worth [Taylor,C] |
22813 | Property is not essential for life, but it may be essential for independence [Taylor,C] |
23417 | If the state is neutral, there won't be sufficient community to support a welfare state [Taylor,C, by Kymlicka] |