Final Study guide Flashcards
(100 cards)
What two things must we know about something in order to have scientific knowledge of it?
Knowing its cause Knowing that it cannot be other than it is
How is a demonstration different from a syllogism?
A syllogism that gives us scientific knowledge
What exactly does it mean for a premise to be immediate?
not proven through another syllogism - i.e. it is known immediately
How convinced must we be of the premises of a demonstration in comparison to the conclusion?
We must be more convinced of the premises than of the conclusion
According to Aristotle, what was the argument used by some ancient skeptics to show that we can’t know anything?
They say that everything must be proved, and since we never stop proving anything we can’t know anything. But, they say, if the proofs stop at a first premise (All A is B), then that premise isn’t proven, so we don’t know it. So whether our proofs go back infinitely or stop at a first premise, they say we can’t know anything
What exactly does their argument assume?
But they are assuming that we get all of our knowledge by demonstration through premises
What is Aristotle’s solution to their argument?
We know primary premises in another way besides by demonstration.
What is the most basic primary premise of all? (State the version in Metaphysics IV.3 and be complete – don’t leave any part of it out.)
The same attribute cannot at the same time both belong and not belong to the same subject and in the same respect
Why exactly can’t there be any proof of it?
Because it would have to be proven from a more certain principle and there no principle that is more certain
What exactly is the argument that Socrates gives against Protagoras’ position that everyone’s opinion is true?
If everyone’s opinion is true, no one would ever think anyone else was mistaken So if the opinions of men are always true, then they must be right
According to Socrates, what would Protagoras himself have to say?
Protagoras must admit that the people who think he is wrong are right
What exactly does Protagoras’ position that “man is the measure of all things” mean?
you are the standard (the criterion) of what is true and real. Truth and reality are relative to your perception.
What is the argument that Socrates gives against that position?
not every man is the measure of truth Only the wiser are
Two examples of Socrates’ argument against Protagoras
Who is better judge if music will be harmonious(Training Master or Musician) Who who the better measure of whether wine will be sweet or dry?(A harp play or a vine grower)
What is Aristotle’s response to the argument that things appear differently to those who are sleeping?
Someone who dreams they are in another city doesn’t act like they’re there when they wake up
What is Aristotle response to the argument that the same thing can appear different to the same person through different senses?
If two senses perceive the same thing differently, one will be more authoritative
What is Aristotle’s final response to those who ask who is to judge who is the healthy observer and who is the defective one?
But that’s like asking whether we’re awake or dreaming right now, that we cannot know which is the healthy one and who is the defective one.
According to Aristotle, why did Protagoras’ hold that man is the measure of all things?
He thought this because people have different perceptions of the same thing
What is Aristotle’s solution to Protagoras’ argument?
It is foolish to treat all perceptions equally Clearly some of them must be wrong
Give an example of Aristoltle’s response to Protagoras with the senses
That someone who is blind is injured and shouldn’t be taken for the measure on a thing regarding sight
Give an example of Aristoltle’s response to Protagoras with good and bad
That someone bad like hannibal Lector must be injured in someway
Give an example of Aristoltle’s response to Protagoras with beautiful and ugly
That the measure of beautiful and ugly could be injured by something such as alcohol
List the 4 steps in how we learn primary premises.
All animals can sense Animals that can retain their sense impressions have memory Repeated memories lead to experience And from experience we can generalize universal truths behind art and science
Why is it impossible to demonstrate the last step(of learning primary premises)
Experience tells us that something has worked before, but not why it works