Combining Texts

All the ideas for 'Set Theory', 'Philosophy of Nature (Encylopedia II)' and 'Discourse on the Origin of Inequality'

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56 ideas

1. Philosophy / E. Nature of Metaphysics / 6. Metaphysics as Conceptual
Metaphysics is the lattice which makes incoming material intelligible [Hegel]
2. Reason / A. Nature of Reason / 9. Limits of Reason
Reason leads to prudent selfishness, which overrules natural compassion [Rousseau]
4. Formal Logic / F. Set Theory ST / 4. Axioms for Sets / b. Axiom of Extensionality I
Extensionality: ∀x ∀y (∀z (z ∈ x ↔ z ∈ y) → x = y) [Kunen]
4. Formal Logic / F. Set Theory ST / 4. Axioms for Sets / c. Axiom of Pairing II
Pairing: ∀x ∀y ∃z (x ∈ z ∧ y ∈ z) [Kunen]
4. Formal Logic / F. Set Theory ST / 4. Axioms for Sets / d. Axiom of Unions III
Union: ∀F ∃A ∀Y ∀x (x ∈ Y ∧ Y ∈ F → x ∈ A) [Kunen]
4. Formal Logic / F. Set Theory ST / 4. Axioms for Sets / f. Axiom of Infinity V
Infinity: ∃x (0 ∈ x ∧ ∀y ∈ x (S(y) ∈ x) [Kunen]
4. Formal Logic / F. Set Theory ST / 4. Axioms for Sets / g. Axiom of Powers VI
Power Set: ∀x ∃y ∀z(z ⊂ x → z ∈ y) [Kunen]
4. Formal Logic / F. Set Theory ST / 4. Axioms for Sets / h. Axiom of Replacement VII
Replacement: ∀x∈A ∃!y φ(x,y) → ∃Y ∀X∈A ∃y∈Y φ(x,y) [Kunen]
4. Formal Logic / F. Set Theory ST / 4. Axioms for Sets / i. Axiom of Foundation VIII
Foundation:∀x(∃y(y∈x) → ∃y(y∈x ∧ ¬∃z(z∈x ∧ z∈y))) [Kunen]
4. Formal Logic / F. Set Theory ST / 4. Axioms for Sets / j. Axiom of Choice IX
Choice: ∀A ∃R (R well-orders A) [Kunen]
4. Formal Logic / F. Set Theory ST / 4. Axioms for Sets / k. Axiom of Existence
Set Existence: ∃x (x = x) [Kunen]
4. Formal Logic / F. Set Theory ST / 4. Axioms for Sets / n. Axiom of Comprehension
Comprehension: ∃y ∀x (x ∈ y ↔ x ∈ z ∧ φ) [Kunen]
4. Formal Logic / F. Set Theory ST / 4. Axioms for Sets / o. Axiom of Constructibility V = L
Constructibility: V = L (all sets are constructible) [Kunen]
11. Knowledge Aims / A. Knowledge / 1. Knowledge
No one would bother to reason, and try to know things, without a desire for enjoyment [Rousseau]
15. Nature of Minds / C. Capacities of Minds / 5. Generalisation by mind
General ideas are purely intellectual; imagining them is immediately particular [Rousseau]
Only words can introduce general ideas into the mind [Rousseau]
18. Thought / D. Concepts / 5. Concepts and Language / a. Concepts and language
Language may aid thinking, but powerful thought was needed to produce language [Rousseau]
21. Aesthetics / A. Aesthetic Experience / 4. Beauty
Without love, what use is beauty? [Rousseau]
22. Metaethics / A. Ethics Foundations / 2. Source of Ethics / b. Rational ethics
Rational morality is OK for brainy people, but ordinary life can't rely on that [Rousseau]
22. Metaethics / C. The Good / 1. Goodness / h. Good as benefit
If we should not mistreat humans, it is mainly because of sentience, not rationality [Rousseau]
23. Ethics / B. Contract Ethics / 2. Golden Rule
The better Golden Rule is 'do good for yourself without harming others' [Rousseau]
23. Ethics / C. Virtue Theory / 3. Virtues / f. Compassion
The fact that we weep (e.g. in theatres) shows that we are naturally compassionate [Rousseau]
24. Political Theory / A. Basis of a State / 1. A People / a. Human distinctiveness
Humans are less distinguished from other animals by understanding, than by being free agents [Rousseau]
24. Political Theory / A. Basis of a State / 1. A People / b. The natural life
Most human ills are self-inflicted; the simple, solitary, regular natural life is good [Rousseau]
Is language a pre-requisite for society, or might it emerge afterwards? [Rousseau]
I doubt whether a savage person ever complains of life, or considers suicide [Rousseau]
Leisure led to envy, inequality, vice and revenge, which we now see in savages [Rousseau]
Primitive man was very gentle [Rousseau]
Our two starting principles are concern for self-interest, and compassion for others [Rousseau]
Savages avoid evil because they are calm, and never think of it (not because they know goodness) [Rousseau]
Savage men quietly pursue desires, without the havoc of modern frenzied imagination [Rousseau]
24. Political Theory / A. Basis of a State / 3. Natural Values / a. Natural freedom
A savage can steal fruit or a home, but there is no means of achieving obedience [Rousseau]
24. Political Theory / A. Basis of a State / 3. Natural Values / b. Natural equality
In a state of nature people are much more equal; it is society which increases inequalities [Rousseau]
It is against nature for children to rule old men, fools to rule the wise, and the rich to hog resources [Rousseau]
24. Political Theory / B. Nature of a State / 2. State Legitimacy / a. Sovereignty
People accept the right to be commanded, because they themselves wish to command [Rousseau]
24. Political Theory / B. Nature of a State / 5. Culture
We seem to have made individual progress since savagery, but actually the species has decayed [Rousseau]
24. Political Theory / C. Ruling a State / 4. Changing the State / c. Revolution
Revolutionaries usually confuse liberty with total freedom, and end up with heavier chains [Rousseau]
All revolutions result from spirit changing its categories, to achieve a deeper understanding [Hegel]
24. Political Theory / D. Ideologies / 5. Democracy / b. Consultation
Plebiscites are bad, because they exclude the leaders from crucial decisions [Rousseau]
24. Political Theory / D. Ideologies / 5. Democracy / c. Direct democracy
In a direct democracy, only the leaders should be able to propose new laws [Rousseau]
25. Social Practice / A. Freedoms / 1. Slavery
People must be made dependent before they can be enslaved [Rousseau]
Enslaved peoples often boast of their condition, calling it a state of 'peace' [Rousseau]
If the child of a slave woman is born a slave, then a man is not born a man [Rousseau]
25. Social Practice / A. Freedoms / 5. Freedom of lifestyle
Like rich food, liberty can ruin people who are too weak to cope with it [Rousseau]
25. Social Practice / B. Equalities / 1. Grounds of equality
Three stages of the state produce inequalities of wealth, power, and enslavement [Rousseau]
25. Social Practice / B. Equalities / 4. Economic equality
The pleasure of wealth and power is largely seeing others deprived of them [Rousseau]
25. Social Practice / C. Rights / 4. Property rights
Persuading other people that some land was 'owned' was the beginning of society [Rousseau]
What else could property arise from, but the labour people add to it? [Rousseau]
Land cultivation led to a general right of ownership, administered justly [Rousseau]
If we have a natural right to property, what exactly does 'belonging to' mean? [Rousseau]
25. Social Practice / D. Justice / 2. The Law / c. Natural law
Writers just propose natural law as the likely useful agreements among people [Rousseau]
25. Social Practice / D. Justice / 3. Punishment / b. Retribution for crime
Primitive people simply redressed the evil caused by violence, without thought of punishing [Rousseau]
25. Social Practice / E. Policies / 1. War / e. Peace
A state of war remains after a conquest, if the losers don't accept the winners [Rousseau]
25. Social Practice / F. Life Issues / 6. Animal Rights
Both men and animals are sentient, which should give the latter the right not to be mistreated [Rousseau]
26. Natural Theory / B. Natural Kinds / 2. Defining Kinds
Men started with too few particular names, but later had too few natural kind names [Rousseau]
27. Natural Reality / G. Biology / 3. Evolution
Small uninterrupted causes can have big effects [Rousseau]