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] |
| 8228 | Being is revealed at the point between waking and sleep [Anon (Cent)] |
| 8232 | Neglect your self, and feel the consciousness of each other being [Anon (Cent)] |
| 8230 | Just as you have the impulse to do something, stop [Anon (Cent)] |
| 8234 | Bondage and liberation are relative terms, which only frighten those already terrified of the universe [Anon (Cent)] |
| 8227 | Feel your whole body saturated with cosmic essence [Anon (Cent)] |
| 8229 | The serenity in blue sky beyond clouds [Anon (Cent)] |
| 8231 | Abandon attachment to body, and feel the joy of being everywhere [Anon (Cent)] |
| 1513 | The Egyptians were the first to say the soul is immortal and reincarnated [Herodotus] |
| 8233 | Imagine fire burning up your whole body, but not you [Anon (Cent)] |