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39 Cards in this Set

  • Front
  • Back
Metaphysics
The study of the nature of reality (what makes it the case that things are the way they are)
What happened to people who criticized Aristotle and why?
Used to be anyone who criticized Aristotle was in big trouble because what he wrote was canonized by the Church. They thought Aristotle was right. To say Aristotle was wrong was to say the Bible was wrong.
Was Descartes in any danger from the Church for his works?
Descartes wasn't in any danger of being excommunicated. Many believe Descartes wrote this intending for it to be put down as a textbook. In those days textbooks were for instructors. He claims to be writing for friends.
What does Descartes focus on?
He doesn't focus on metaphysics, but instead he marked the turn to epistemology. Questions about knowledge.
Epistemology
Study of knowledge. What do you have to have to be able to claim that you know something. Questions of justification came in. My eyes show me the table is here.
Rationalism
the kind of knowledge that matters is a priori knowledge. Descartes is the only rationalist we will read. They emphasize the importance of ideas/concepts in thinking. Focus is on a priori knowledge. Mathematical proofs will be popular.
Empericism
a posteriori premises. Emphasize the centrality of experience in thinking. Aristotle-Focus is on a posteriori. Scientific inquiry they run experiments to see what hapens. It's not about equations. Locke, Barkley, and Hume share this thought.
Descartes Who is he?
He was Father of the modern period. He came first before these other people. Regarded as a good writer. HE does this as a narration. He has the answers as his diary. Argues for rationalism to get any kind of knowledge you have to use such things as mathematics.
Rene Descartes
1596-1650 French Philosopher
Was first and foremost a mathmatician a natural philosopher second and a philosopher third.
Foundationalsim
Examine the foundations of his knowledge. There are alot of false beliefs which lead to other falsities. Have to make sure our foundations are strong.
What are the commitments Descartes makes?
1. Foundationalsim
2. Methodological skepticism
3. Withholding policy
Methodological skepticism
Takes a skeptical view but only to look at his foundation. He's not a skeptic who's going to have an existential crisis. Rather, the skepticism is adopted for the purpose of examining the foundation of knowledge. He's not going to say oh how do I know I'm rene descartes.
Withholding policy
If we can cast some doubt on a set of beliefs, then he will withhold assent from these beliefs until he can determine their truth. If I have any reason to question the beliefs of my senses I'll have to set all of them aside and not rely on them until I can say they're on a strong foundation. By doing so he sets the standard of knowledge at certainty. Unless you can show these beliefs are 100% certain we cannot trust them. HE says you can't know something without certainty. He's fully committed to the deductive argument.
What does Descartes set the standard of knowledge at?
If I have any reason to question the beliefs of my senses I'll have to set all of them aside and not rely on them until I can say they're on a strong foundation. By doing so he sets the standard of knowledge at certainty. Unless you can show these beliefs are 100% certain we cannot trust them. HE says you can't know something without certainty. He's fully committed to the deductive argument.
What type of argumentation does Descartes employ?
He's fully committed to the deductive argument.
Why does Descarte say you need 100% certainty?
If you have a solid foundation anything you believe should be fine. He withholds relying on any beliefs if any of the beliefs are uncertain.
Skeptical hypothesis
IF you just rely on the senses it would seem that things change size as you get closer and closer. We have blind spots you can't see what's there BUT there's something there.
Sense deception argument
P1. Sometimes our senses fail us (optical illusions, mirages)
P2. We cannot always trust our senses (We know they deceive us from far away that looks like my friend but I'm not sure)
C. Therefore, we can doubt what our senses tell us.
Sense deception argument P1
Sometimes our senses fail us (optical illusions)
Sense deception argument P2
We cannot always trust our senses (we know they deceive us. From far away that looks like my friend but I'm not sure).
Sense deception argument conclusion
therefore, we can doubt what our senses tell us.
Veridical experience
IT is representational of the world. Example If I can have dream like experiences that I think are real then we have problems with veridial experiences.
Deviant experience
Things we see in the world aren't necessarily true.
Why could we have problems with veridial experience?
If I can have dreamlike experiences which I think are real then they are representational of the world but they aren't actually happening and therefore cannot trust our veridial experience.
Dream ARgument
P1. I don't know I'm not dreaming and I cannot know that (I'm sitting by the fire holding the paper. I don't know that I'm dreaming.)
P2. IF I know I'm observing my body, then I know I'm not dreaming (If I could establish I am right now observing my body I'd be able to do this but, )
P3. I don't know I'm not dreaming
C. Therefore, I don't know that I'm observing my body.
Dream argument P1.
I don't know that I'm not dreaming and I cannot know that. (I'm sitting by the fire holding the paer. I don't know that I'm dreaming.)
Dream argument P2.
If I know I'm observing my body, then I know I'm not dreaming. (IF I could establish that I am right now observing my body then I would be able to do this But I can't do this.)
Dream Argument P3
I don't know that I'm not dreaming.
Dream argument conclusion
Therefore, I don't know that I'm observing my body.
How does veridial experience get called into question?
He says there are some things we can know by the senses. But, if I'm dreaming, I don't know that I'm not doing the actions. This calls our veridial experience into question. A posteriori premises therefore cannot be assented to. The problem was no reliable way to mark contrast between deviant and veridial experience. You don't mishear yourself. You'r not wrong that these are my hands. Maybe I'm just as wrong about those things because I can dream like its real.
What does descartes target and what does he eventually come up with?
He targets a posteriori propositions. He seemingly clears everything off the deck and starts fresh. Everything counts. If he mentions it he will come back to it. He writes very purposefully. Maybe God could decieve me? No God is all good. So he comes up with the idea that maybe it's an Evil demon so that even conceptual proofs can be doubted.
What does he say about God and being deceiptful? And ultimately where does this leave him?
Maybe God could decieve me? No God is all good. So he comes up with the idea that maybe it's an Evil demon so that even conceptual proofs can be doubted.
Evil demon/deceiver argument
P1. I don't know that I'm not being deceived by an evil demon and I cannot know that (How would I know that I'm being deceived. If something is universally deceiving me, how could I ever find out?)
P2. If I know what 2+3=5 then I know that I am not being deceived.
P3. I cannot know that I am not being deceived.
Conclusion=Therefore, I do not know that 2+3=5.
Evil demon/deceiver argument P1
P1. I don't know that I'm not being deceived by an evil demon and I cannot know that (How would I know that I'm being deceived. If something is universally deceiving me, how could I ever find out?)
Evil demon/deceiver argument P2
IF I know that 2+3=5, then I know that I'm not being deceived.
Evil demon/deceiver argument P3
I cannot know that I am not being deceived
Evil demon/deceiver argument conclusion
Therefore, I don't know that 2+3=5
What argument exists to clear the table of a priori proofs
The evil demon/deceiver argument clears the table of a priori propositions. CAnnot be assented to. If I can doubt anything you have to put it on the shelf. This was doubted so they are now all gone.
Problem with Descartes method of argumentation and the clearing of a priori premises
Descartes is eventually going to say sure we will know a priori propositions, You really don't have to put them on the shelf. Descartes is using deductive argumentation. If you have to get rid of deductive arguments, you cannot argue.