20 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] |
17699 | Variables are auxiliary notions, and not part of the 'eternal' essence of logic [Schönfinkel] |
13852 | Axioms are ω-incomplete if the instances are all derivable, but the universal quantification isn't [Engelbretsen/Sayward] |
22076 | Being is only perceptible to itself as becoming [Schelling] |
22072 | Schelling always affirmed the absolute status of freedom [Schelling, by Courtine] |
21925 | For Schelling the Absolute spirit manifests as nature in which self-consciousness evolves [Schelling, by Lewis,PB] |
22045 | Metaphysics aims at the Absolute, which goes beyond subjective and objective viewpoints [Schelling, by Pinkard] |
22074 | We must show that the whole of nature, because it is effective, is grounded in freedom [Schelling] |
22073 | The basis of philosophy is the Self prior to experience, where it is the essence of freedom [Schelling] |
22075 | Only idealism has given us the genuine concept of freedom [Schelling] |
20956 | Ultimately, all being is willing. The nature of primal being is the same as the nature of willing [Schelling] |
20957 | We don't choose our characters, yet we still claim credit for the actions our characters perform [Schelling] |
22057 | Schelling sought a union between the productivities of nature and of the mind [Schelling, by Bowie] |
22031 | Schelling made organisms central to nature, because mere mechanism could never produce them [Schelling, by Pinkard] |