Combining Philosophers

All the ideas for Halbach,V/Leigh,G.E., Isaiah and Jonathan Glover

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54 ideas

1. Philosophy / D. Nature of Philosophy / 2. Invocation to Philosophy
Let us reason together, saith the Lord [Isaiah]
3. Truth / A. Truth Problems / 2. Defining Truth
If we define truth, we can eliminate it [Halbach/Leigh]
3. Truth / F. Semantic Truth / 1. Tarski's Truth / b. Satisfaction and truth
If a language cannot name all objects, then satisfaction must be used, instead of unary truth [Halbach/Leigh]
3. Truth / F. Semantic Truth / 1. Tarski's Truth / c. Meta-language for truth
Semantic theories need a powerful metalanguage, typically including set theory [Halbach/Leigh]
3. Truth / F. Semantic Truth / 2. Semantic Truth
The T-sentences are deductively weak, and also not deductively conservative [Halbach/Leigh]
3. Truth / G. Axiomatic Truth / 1. Axiomatic Truth
A natural theory of truth plays the role of reflection principles, establishing arithmetic's soundness [Halbach/Leigh]
If deflationary truth is not explanatory, truth axioms should be 'conservative', proving nothing new [Halbach/Leigh]
3. Truth / G. Axiomatic Truth / 2. FS Truth Axioms
The FS axioms use classical logical, but are not fully consistent [Halbach/Leigh]
3. Truth / G. Axiomatic Truth / 3. KF Truth Axioms
KF is formulated in classical logic, but describes non-classical truth, which allows truth-value gluts [Halbach/Leigh]
8. Modes of Existence / B. Properties / 12. Denial of Properties
We can reduce properties to true formulas [Halbach/Leigh]
8. Modes of Existence / E. Nominalism / 1. Nominalism / c. Nominalism about abstracta
Nominalists can reduce theories of properties or sets to harmless axiomatic truth theories [Halbach/Leigh]
16. Persons / A. Concept of a Person / 1. Existence of Persons
Persons are conscious, they relate, they think, they feel, and they are self-aware [Glover]
20. Action / C. Motives for Action / 5. Action Dilemmas / a. Dilemmas
A problem arises in any moral system that allows more than one absolute right [Glover]
20. Action / C. Motives for Action / 5. Action Dilemmas / b. Double Effect
Double Effect: no bad acts with good consequences, but possibly good acts despite bad consequences [Glover]
20. Action / C. Motives for Action / 5. Action Dilemmas / c. Omissions
Acts and Omissions: bad consequences are morally better if they result from an omission rather than an act [Glover]
It doesn't seem worse to switch off a life-support machine than to forget to switch it on [Glover]
Harmful omissions are unavoidable, while most harmful acts can be avoided [Glover]
22. Metaethics / B. Value / 2. Values / c. Life
What matters is not intrinsic value of life or rights, but worthwhile and desired life, and avoidance of pain [Glover]
22. Metaethics / B. Value / 2. Values / e. Death
'Death' is best seen as irreversible loss of consciousness, since this is why we care about brain function [Glover]
22. Metaethics / C. The Good / 1. Goodness / g. Consequentialism
You can't separate acts from the people performing them [Glover]
22. Metaethics / C. The Good / 1. Goodness / h. Good as benefit
Aggression in defence may be beneficial but morally corrupting [Glover]
22. Metaethics / C. The Good / 2. Happiness / d. Routes to happiness
The quality of a life is not altogether independent of its length [Glover]
23. Ethics / D. Deontological Ethics / 1. Deontology
Duty prohibits some acts, whatever their consequences [Glover]
23. Ethics / E. Utilitarianism / 1. Utilitarianism
Satisfaction of desires is not at all the same as achieving happiness [Glover, by PG]
23. Ethics / E. Utilitarianism / 5. Rule Utilitarianism
Rule-utilitarianism is either act-utilitarianism, or not really utilitarian [Glover]
24. Political Theory / A. Basis of a State / 2. Population / a. Human population
How can utilitarianism decide the ideal population size? [Glover]
The sanctity of life doctrine implies a serious increase of abnormality among the population [Glover]
24. Political Theory / D. Ideologies / 6. Liberalism / g. Liberalism critique
Autonomy favours present opinions over future ones, and says nothing about the interests of potential people [Glover]
If a whole community did not mind death, respect for autonomy suggests that you could kill them all [Glover]
25. Social Practice / A. Freedoms / 5. Freedom of lifestyle
Autonomy seems to acquire greater weight when the decision is more important to a person [Glover]
25. Social Practice / C. Rights / 2. Moral rights
Being alive is not intrinsically good, and there is no 'right to life' [Glover]
You can't have a right to something you can't desire, so a foetus has no 'right' to life [Glover]
25. Social Practice / F. Life Issues / 1. Causing Death
If someone's life is 'worth living', that gives one direct reason not to kill him [Glover]
Utilitarians object to killing directly (pain, and lost happiness), and to side-effects (loss to others, and precedents) [Glover]
What is wrong with killing someone, if another equally worthwhile life is substituted? [Glover]
The 'no trade-off' position: killing is only justified if it prevents other deaths [Glover]
Societies spend a lot to save known persons, but very little to reduce fatal accidents [Glover]
25. Social Practice / F. Life Issues / 2. Euthanasia
Involuntary euthanasia is wrong because it violates autonomy, and it has appalling side-effects [Glover]
Euthanasia is voluntary (patient's wish), or involuntary (ignore wish), or non-voluntary (no wish possible) [Glover]
Maybe extreme treatment is not saving life, but prolonging the act of dying [Glover]
The Nazi mass murders seem to have originated in their euthanasia programme [Glover]
25. Social Practice / F. Life Issues / 3. Abortion
Conception isn't the fixed boundary for a person's beginning, because twins are possible within two weeks [Glover]
How would we judge abortion if mothers had transparent wombs? [Glover]
If killing is wrong because it destroys future happiness, not conceiving a happy child is also wrong [Glover]
Defenders of abortion focus on early pregnancy, while opponents focus on later stages [Glover]
If abortion is wrong, it is because a foetus is a human being or a person (or potentially so) [Glover]
If abortion is wrong because of the 'potential' person, that makes contraception wrong too [Glover]
Abortion differs morally from deliberate non-conception only in its side-effects [Glover]
If viability is a test or boundary at the beginning of life, it should also be so for frail old people [Glover]
Apart from side effects, it seems best to replace an inadequate foetus with one which has a better chance [Glover]
It is always right for a qualified person to perform an abortion when requested by the mother [Glover]
25. Social Practice / F. Life Issues / 4. Suicide
One test for a worthwhile life is to assess the amount of life for which you would rather be unconscious [Glover]
27. Natural Reality / E. Cosmology / 1. Cosmology
The world is established, and cannot be moved [Isaiah]
28. God / A. Divine Nature / 1. God
Beside me there is no God [Isaiah]