Arguments from reason Flashcards
What are arguments from reason
Arguments from reason are ontological arguments that attempt to prove God’s existence from the definition of God. They are a priori arguments, relying on ideas and logic rather than experience.
What is a posteriori vs a priori
A posteriori- arguments from observation: public experience
A priori- arguments from reason: definitions and logic
Who believes in a posteriori and who believes in a priori
A posteriori- empiricists
A priori- rationalists
Who is Anselm (2)
Anselm was a rationalist medieval philospher who was inspired by Psalm 14 “the fool has said in his heart that there is no God”
What is the ontological argument (3)
The ontological argument is an a priori proof for God’s existence based solely on logic and reasoning, asserting that God must exist.
It goes as follows:
(1) Got is that than which nothing greater can be conceived
(2) If so, then God has the characteristic of existence in reality
(3) So God has the characteristic of existence in reality
Prove the premises of the first ontological argument
(1) Got is that than which nothing greater can be conceived
Definition of God and if something greater is imaginable then that would be God
(2) If so, then God has the characteristic of existence in reality
Better to exist in reality than imagination. (Example) better to have real money and real friends compared to fake ones. If he is not real then there is a possibility of him being greater
(3) So God has the characteristic of existence in reality
What analogy could be used for the first ontological argument
God can be proven as omnipotent through his definition as the most powerful being because it is better to be omnipotent than not to be and whoever thinks otherwise is a fool. Likewise he must exist because it is greater to do so.
What is a reductio ad absurdum objection
An objection that proves a suggestion is absurd in consideration
Who is Gaunilo
A monk contemporary to St Anselm who had 2 RAD objections to his ontological arguments
What was Gaunilo’s first objection (3)
Gaunilo uses the idea of a perfect IMAGINARY island to RAD object. His argument goes as follows.
(1) Anselm thinks it is greater to exist in reality than to not
(2) If so, Anselm must think the greatest imaginary island exists
(3) So Anselm must think the greatest imaginary island exists
Prove the premises of Gaunilo’s first objection and state why it is a good RAD objection
(1) Anselm thinks it is greater to exist in reality than to not
This is an integral part of the ontological argument (explain)
(2) If so, Anselm must think the greatest imaginary island exists
If it did not exist Anselm would not think it is the greatest (explain)
(3) So Anselm must think the greatest imaginary island exists
This is a strong objection because it is a RAD meaning it takes an argument and criticises why it is wrong as it results in absurd consequences. In this instance, it would be absurd to think that the greatest imaginary island exists as it does not however Anselm would say that its not the greatest
Who is Plantinga
Contemporary philosopher of religion
What did Plantinga believe
Plantinga believes Gaunilo is silly in using his idea of the greatest island as we cannot imagine it so it makes no sense to prove it exists
What was his reply
He argues using the idea of an intrinsic maximum which proves that no matter how great you imagine an island, it can always be greater. An example of this is palm trees, if seen as good, having 1000 of them would be good but having 1001 or 1002 would be better and the number can always be increased however can never be infinite, so the perfect island is unimaginable
Why is Plantinga’s reply a good one
It is RAD and it introduces a new consideration that Gaunilo had not takin into account. Gaunilo had not considered that the GI was unimaginable due to the concept of an intrinsic maximum and therefore it could not be applied to Anselm’s logic
What is Gaunilo’s 2nd objection (3)
‘God does not exist in our imagination’ He suggests that we do not really know God and since we do not, we cannot prove his existence a priori
What is Gaunilo’s 2nd objection
His argument goes as follows
(1) We do not have a full idea of God
(2) If so, then we cannot prove he exists based on our idea of him
(3) So, we cannot prove he exists just based on our idea of him
Prove the premises of Gaunilo’s 2nd objection
(1) We do not have a full idea of God
God is transcendent and infinite and there is an epistemic gap as we are finite and immanent
(2) If so, then we cannot prove he exists based on our idea of him
He transcends our imagination therefore we do not have an idea of him to prove his existence
(3) So, we cannot prove he exists just based on our idea of him