Combining Philosophers

All the ideas for Engelbretsen,G/Sayward,C, Hermann von Helmholtz and Thomas M. Crisp

expand these ideas     |    start again     |     specify just one area for these philosophers

17 ideas

3. Truth / B. Truthmakers / 5. What Makes Truths / d. Being makes truths
14025 The weaker version of Truthmaker: 'truth supervenes on being' [Crisp,TM]
3. Truth / B. Truthmakers / 9. Making Past Truths
14023 The Truthmaker thesis spells trouble for presentists [Crisp,TM]
3. Truth / B. Truthmakers / 12. Rejecting Truthmakers
14024 Truthmaker has problems with generalisation, non-existence claims, and property instantiations [Crisp,TM]
4. Formal Logic / A. Syllogistic Logic / 1. Aristotelian Logic
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]
4. Formal Logic / A. Syllogistic Logic / 2. Syllogistic Logic
13915 Syllogistic can't handle sentences with singular terms, or relational terms, or compound sentences [Engelbretsen/Sayward]
4. Formal Logic / A. Syllogistic Logic / 3. Term Logic
13916 Term logic uses expression letters and brackets, and '-' for negative terms, and '+' for compound terms [Engelbretsen/Sayward]
5. Theory of Logic / A. Overview of Logic / 4. Pure Logic
13850 In modern logic all formal validity can be characterised syntactically [Engelbretsen/Sayward]
5. Theory of Logic / A. Overview of Logic / 6. Classical Logic
13849 Classical logic rests on truth and models, where constructivist logic rests on defence and refutation [Engelbretsen/Sayward]
5. Theory of Logic / D. Assumptions for Logic / 4. Identity in Logic
13851 Unlike most other signs, = cannot be eliminated [Engelbretsen/Sayward]
5. Theory of Logic / K. Features of Logics / 5. Incompleteness
13852 Axioms are ω-incomplete if the instances are all derivable, but the universal quantification isn't [Engelbretsen/Sayward]
9. Objects / E. Objects over Time / 4. Four-Dimensionalism
14021 Worm Perdurantism has a fusion of all the parts; Stage Perdurantism has one part at a time [Crisp,TM]
27. Natural Reality / A. Classical Physics / 2. Thermodynamics / a. Energy
20646 Helmholtz used 'energy' to mathematically link heat, light, electricity and magnetism [Helmholtz, by Watson]
27. Natural Reality / A. Classical Physics / 2. Thermodynamics / c. Conservation of energy
20973 All forces conserve the sum of kinetic and potential energy [Helmholtz, by Papineau]
27. Natural Reality / D. Time / 1. Nature of Time / f. Eternalism
14020 'Eternalism' is the thesis that reality includes past, present and future entities [Crisp,TM]
27. Natural Reality / D. Time / 1. Nature of Time / h. Presentism
14026 Presentists can talk of 'times', with no more commitment than modalists have to possible worlds [Crisp,TM]
27. Natural Reality / D. Time / 2. Passage of Time / d. Time series
14022 The only three theories are Presentism, Dynamic (A-series) Eternalism and Static (B-series) Eternalism [Crisp,TM]