Arguments
Structured sets of statements
Premises
Support conclusion
Valid Argument
If the premises are true, the conclusion must be true; valid arguments CAN have false premises
Sound Argument
A valid argument with all true premises.
Inductive Arguments
Strong: if all the premises are true, the conclusion is likely to be true
Cogent: strong argument w true premises
Modus Ponens
If A then B; A; B
Modus Tollens
If A, then B; Not B; Not A
Epicurus
All good and evil requires sensation; there is no sensation if you are dead; death is nothing to us
Lucretius
The time before you are born is not a misfortune; the time after you die shouldn’t be considered a misfortune either; death is nothing to us
Nagel
Death is bad; misfortune doesn’t require sensation or experience
Scheffler
The afterlife matters to us; in its own right; as a condition of other things continuing to matter
Thought experiments; doomsday & infertility
Williams
Immorality is not desirable
Susan Wolf
1. The meaning of lives
A meaningful life: one where you are actively and at least somewhat successfully engaged in a project or projects of positive value
2. Moral Saints
You should not strive to be a moral saint. balanced life.
Benetar
It’s better to never exist; Argument relies on crucial asymmetry between the absence of pain on the side of nonexistence
Epistemology
the branch of philosophy concerned with knowledge and its conditions
Standard theory of knowledge
Justified, True Belief (JTB)
Gettier
Challenged JTB
Descartes
wants a firm foundation for knowledge: certainty!
In order to get this, he systematically doubts everything
Our senses can deceive us
You could be dreaming
You make mistakes and inference
Evil Demon
Stroud
Focuses on Descartes “you could be dreaming”
Echo chamber
An echo chamber is what happens when you don’t trust people from the other side
Epistemic bubbles
An epistemic bubble is when you don’t hear people from the other side
Mill
Utilitarianism
The greatest happiness principle
The principle of utility
Actions are morally wrong if they tend to promote happiness and wrong when they tend to promote pain
Mill distinguishes between higher and lower pleasures
Mill points out that you have to consider the wider implications of your actions, not just momentary advantage --> example lying!
Singer
we should all be doing more to prevent things like famine:
Suffering is bad
If you can prevent suffering without sacrificing anything of comparable moral significance, you ought morally to do it
Kant
deontological moral theory: duty-based
Good will is the only thing that has unconditional value.
Good will: the will that is determined by morality
Frankfurt
"on bullshit"
Bullshit has no concern for truth, what they say, might even be true.
Liar still has the concern for truth