Ethics Unit 1 Flashcards
value theory
what is valuable in and of itself (by itself); what a good life consists in.
normative ethics
looks for the supreme principle(s) of right action.
regarding how one ought to act morally.
metaethics
ask questions about the fundamental status of moral claims. Are moral claims capable of being true? What makes them true? How can we know that moral claims are true? Is it always rational to be moral? Is morality objective?
3 components of a typical moral argument
- One premise states a normative principle.
“If we can benefit someone without harming anyone else, we should.” - A factual premise which describes the situation in a way that shows how it falls under the normative principle.
“Transplanting Baby Theresa’s organs would benefit the other children without harming Baby Theresa.” - The conclusion states what you should do.
“Therefore, we ought to transplant the organs.”
valid deductive argument
An argument in which, assuming the premises are true, it is impossible for the conclusion to be false. In other words, the conclusion follows necessarily from the premises.
validity is independent of ___
the truth of the premises or the conclusion.
a statement is a
sentence with truth value (true/false)
~ means
isnt
soundness =
an argument that is logically valid but also the premises are true.
⊃ or 🡪 means
If ____ then____
if
Socrates is a man = M
Socrates is a unicorn = U
how do you say socrates is not a unicorn?
~U
if
Socrates is a man = M
Socrates is a unicorn = U
how do you say If Socrates is a man, then he is a unicorn
M🡪U
if
Socrates is a man = M
Socrates is a unicorn = U
how do you say If Socrates is a man, then he is not a unicorn
M🡪~U
The statement following “if” is the called the
antecedent
the “then”-statement is the
consequent
modus ponens
p ⊃ q
p
—————
q
valid example of modus ponens
if its raining, then the streets are wet.
its raining.
—————
the streets are wet.
invalid example of modus ponens
if its raining, then the streets are wet.
the streets are wet.
—————
its raining.
T/F: if an argument has modus ponens or modus tollens, then it is valid always.
True.
modus tollens
p ⊃ q
~q
—————
~p
invalid modus tollens
p ⊃ q
~p
—————
~q
the statement following “only if” is the _____. and the other statement is the ______
consequent, antecedent.
how to translate this universal affirmative/neg. statement as a conditional statement? “All men are mortal”. And “No cats are dogs”.
- If something is a man, then it is mortal.
- if something is a cat, then it is not a dog.
An if statement goes on the ____ side of the arrow/horseshoe.
left.