Test 2 Flashcards
Essential: What is an argument?
A sequence of statements, some of which give reason to accept another statement, called a conclusion
What does the question of validity ask?
Whether or not we have reason to accept a conclusion
How to you prove if something is valid?
Begin with a condition; if the premises are true, the conclusion must be also
What is modus ponens?
A -> B, if A then B
Essential: What is soundness?
A valid argument with true premises (a valid argument can be wrong, needs true premises for confirmation)
What is an example of a modus ponens (deductive argument)?
All sharks are fish, all fish swim, therefore all sharks swim
Essential: What is the basic idea of the ontological proof for the existence of God?
It is a priori (prior to experience); we understand God to be a perfect being, meaning that he exists in our mind, and because he is in the mind as a conceivable being, he must exist
What is the breakdown of the Ontological Argument for the existence of God?
- God is the greatest conceivable being
- Either the greatest conceivable being exists in understanding only or in reality
- If the greatest conceivable being exists in understanding only, then it is not the greatest conceivable being.
Conclusion: God exists in reality, also.
What is the breakdown of the Ontological Argument for the existence of God?
- God is the greatest conceivable being
- Either the greatest conceivable being exists in understanding only or in reality
- If the greatest conceivable being exists in understanding only, then it is not the greatest conceivable being.
Conclusion: God exists in reality, also.
What is the main counter to the Ontological Argument and who made it?
Gaunilio- talks about a Perfect Island using same logical formula; Anselm responds saying that his refutation is invalid for something finite like an island, not infinite like God
Essential: Who came up with the Cosmological Proof for God’s Existence and how did he frame it?
Anselm; broke it into Five Ways
Essential: What is the breakdown of the Cosmological Proof?
- Various things are moved, whatever is moved has to have been moved by something else, no infinite cause/effect chains, something must have caused the first movement (God)
- Natural world has events, all events have causes, causes precede effects, There must have been a first cause outside of nature (God)
- Contingent things now exist, all things will fail to exist, there would be a time when nothing exists, if the world were empty, it would be in the past, it would be empty forever, if everything were contingent, nothing would exist, the world is not empty, so there exists a being that is not contingent (God)
- Objects have more or less properties, if something has less of something then something must have more of it, so there is an entity that has all properties to the maximum degree
- All objects either have a mind or do not, all that act for an end but don’t have mind must have been designed by being with mind, so a being must have designed all mindless objects (God)
What two people came up with the Classic Rational Proofs? What were they?
St. Thomas and St. Anselm; using axioms that they believed to be self-evident, they deduced the existence of God
Why didn’t Descartes use the Classic Rational Proofs?
The argument was cosmological which relies on the existence of the world; Descartes only knew that he himself existed, and all of St. Thomas’ theories traced the existence of the world back to God
Essential: To Descartes, what are the three main features of ideas?
Where they come from, what kind of reality they have, and what they refer to
Essential: How does Descartes differentiate ideas?
By where they came from:
Innate- come from the nature of human reason itself and are natural to all human beings
Factitious- from human imaginative intention
Adventitious- caused by things outside of us in the world
How does Descartes differentiate the types of reality that ideas have?
Ideas exist in our mind in two types of reality:
Actual- ?
Formal- ?
What is objective reality?
The idea that ideas are of something; the idea of an oak tree is of an oak tree, not of a desk or a lamp or something other than an oak tree
Essential: How does Descartes explain the existence of God as different from other factitious ideas?
What makes it possible for us to have this idea can only be God Himself, whose existence causes us to have it
What are Descartes’ Ideas and Causes?
There must be as much reality in cause as there is in effect; something cannot proceed from nothing; what is more perfect cannot proceed from the less perfect; nothing could cause my idea of God as a perfect substance that is not as perfect as the idea; therefore, God must have caused the idea
What kind of idea does Decartes say God is?
Innate
How did Epicurus refute the existence of God?
By posing the problem of evil:
(1) God is omniscient, so he would know how to prevent evil.
(2) God is omnipotent, so he would have the power to prevent evil.
(3) God is omnibenevolent, so out of his love he would be willing to prevent evil.
Conclusion: Evil doesn’t exist. (obviously sarcastic)
How does Hume refute the existence of God through evil?
If evil in the world is the intention of the Deity, then He is not benevolent.
If evil in the world is contrary to His intention, then He is not omnipotent.
But evil is either in accordance with His intention or contrary to it.
Therefore, either the Diety is not benevolent, or he is not omnipotent.
What is theodicy?
A defense of the justice or goodness of God in the face of doubts or objections arising from the phenomenon of evil in the world
How does Leibniz maintain God’s omnibenevolence in the face of evil?
Evils are logically necessary for greater goods, so even an omnipotent being would find them necessary; he also adds that this world must be the best possible
Essential: What are Leibniz’s 3 kinds of evil?
Metaphysical- mere imperfection in being; needed for created universe
Physical- means to an end; prevent greater evils to obtain greater good; no pain, no gain
Moral- evil that stems from free will; if we are not to be puppets, then we should be able to act badly
What is the teleological argument?
Essentially that the universe biologically resembles human artifacts (also called analogical argument):
1. Artifacts come from intelligence 2. Universe resembles the artifacts 3. Universe is probably from intelligent design 4. Universe is significantly larger than human artifacts 5. There probably is a powerful and vastly intelligent designer