Combining Philosophers

All the ideas for Plutarch, Iamblichus and Max J. Cresswell

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24 ideas

4. Formal Logic / D. Modal Logic ML / 3. Modal Logic Systems / b. System K
14970 Normal system K has five axioms and rules [Cresswell]
4. Formal Logic / D. Modal Logic ML / 3. Modal Logic Systems / c. System D
14971 D is valid on every serial frame, but not where there are dead ends [Cresswell]
4. Formal Logic / D. Modal Logic ML / 3. Modal Logic Systems / g. System S4
14972 S4 has 14 modalities, and always reduces to a maximum of three modal operators [Cresswell]
4. Formal Logic / D. Modal Logic ML / 3. Modal Logic Systems / h. System S5
14973 In S5 all the long complex modalities reduce to just three, and their negations [Cresswell]
4. Formal Logic / D. Modal Logic ML / 7. Barcan Formula
14976 Reject the Barcan if quantifiers are confined to worlds, and different things exist in other worlds [Cresswell]
8. Modes of Existence / A. Relations / 4. Formal Relations / a. Types of relation
14974 A relation is 'Euclidean' if aRb and aRc imply bRc [Cresswell]
9. Objects / E. Objects over Time / 9. Ship of Theseus
1212 Replacing timbers on Theseus' ship was the classic illustration of the problem of growth and change [Plutarch]
10. Modality / A. Necessity / 4. De re / De dicto modality
14975 A de dicto necessity is true in all worlds, but not necessarily of the same thing in each world [Cresswell]
11. Knowledge Aims / C. Knowing Reality / 3. Idealism / a. Idealism
5958 The sun is always bright; it doesn't become bright when it emerges [Plutarch]
15. Nature of Minds / A. Nature of Mind / 2. Psuche
5959 Some philosophers say the soul is light [Plutarch]
5960 When the soul is intelligent and harmonious, it is part of god and derives from god [Plutarch]
16. Persons / B. Nature of the Self / 7. Self and Body / c. Self as brain controller
5952 Rather than being the whole soul, maybe I am its chief part? [Plutarch]
17. Mind and Body / E. Mind as Physical / 7. Anti-Physicalism / a. Physicalism critique
5951 If atoms have no qualities, they cannot possibly produce a mind [Plutarch]
18. Thought / A. Modes of Thought / 3. Emotions / f. Emotion and reason
5963 Some say emotion is a sort of reason, and others say virtue concerns emotion [Plutarch]
20. Action / B. Preliminaries of Action / 1. Intention to Act / c. Reducing intentions
20796 Action needs an affinity for a presentation, and an impulse toward the affinity [Plutarch]
22. Metaethics / A. Ethics Foundations / 2. Source of Ethics / j. Ethics by convention
1477 Being manly and brave is the result of convention, not of human nature [Plutarch]
22. Metaethics / C. The Good / 3. Pleasure / e. Role of pleasure
1478 Animals don't value pleasure, as they cease sexual intercourse after impregnation [Plutarch]
23. Ethics / C. Virtue Theory / 3. Virtues / a. Virtues
5948 The good life involves social participation, loyalty, temperance and honesty [Plutarch]
25. Social Practice / F. Life Issues / 5. Sexual Morality
1479 Animals have not been led into homosexuality, because they value pleasure very little [Plutarch]
26. Natural Theory / A. Speculations on Nature / 6. Early Matter Theories / g. Atomism
5950 If only atoms exist, how do qualities arise when the atoms come together? [Plutarch]
28. God / A. Divine Nature / 6. Divine Morality / b. Euthyphro question
1515 Pythagoreans believe it is absurd to seek for goodness anywhere except with the gods [Iamblichus]
28. God / B. Proving God / 3. Proofs of Evidence / e. Miracles
5974 People report seeing through rocks, or over the horizon, or impossibly small works [Plutarch]
28. God / C. Attitudes to God / 5. Atheism
5957 Absurd superstitions make people atheist, not disharmony in nature [Plutarch]
29. Religion / D. Religious Issues / 1. Religious Commitment / a. Religious Belief
5955 No one will ever find a city that lacks religious practices [Plutarch]