ontological argument Flashcards
what is inductive reasoning
A set of premises which move towards a conclusion that is not logically necessary, but is only probable
Inductive reasoning is when you start with specific observations or facts, and infer a general rule or conclusion from them.
a-priori means
knowledge gained through reason alone.
A posteriori
‘From what comes after’ - knowledge gained through experience
Deductive reasoning
A set of premises which move towards a logically necessary conclusion
according to Anselm, God is…
‘a being than which nothing greater can be conceived.’
Anselm’s reply to Guanillo
An island cannot be defined as ‘that than which no greater island can be conceived’. Because you can always better an island
Anselms argument
p1 - god is something which nothing greater can be conceived
p2- things exist either in mind only or in mind and reality
p3- greater for a thing to exist in mind and reality than mind only
logical contradiction for god to exist in mind only (because he is which nothing greater can be conceived) so has to exist in reality
c- god has to exist in mind and reality so must exist
anselms second argument
p1- god is something which nothing greater can be conceived
p2- things exist either contingently or neessarily
p3- greater to exist necessarily than contingently
c- same proof by contradiction - so god has to exist necessarily
descartes ontological argument
p1- god is supremely perfect being and has all possible perfections
p2- existence is a perfection so has to have perfection (god without existence is like a triangle without 3 sides)
c- god has existence as a perfection which means he exists
malcoms ontological argument
- p1- if god exists his existence is necessary
p2 - gods existence isnt impossible since it isnt contradictory
p3- gods existence is necessary
Platingas ontological argument
God is possible
Of all words god must exist in some
god is perfect and infinite so must exist in all
god exists
kant on the ontological arguments
unacceptable logical leap because ‘god exists’ is a synthetic statement
example of coins
can imagine coins with existence and coins that do not exist - no difference so existence cannot be a predicate/ quality of god
guanillos response to anslems argument
island which no greater thing can be concieved
aquinas on ontological arguments -
a priori argument cannot prove gods existence only experience can
criticism of anselms ontological argument (definition)
assumes a definition of god