Like this study set? Create a free account to save it.

Sign up for an account

Already have a Quizlet account? .

Create an account


Concerned with being

A priori

Uses reason alone rather than relying on evidence of senses or world around us


Premises contain conclusion


True by definition


Offered modal form of the argument: God must exist in all possible worlds since maximally great and excellent


God's existence neither impossible nor contingent=>necessary
Doctrine of existence as perfection='remarkably queer'


Developed ontological argument for non-existence of God


'Cows are brown and exist'=tautology, only tells us one thing (i.e. 'cows are brown')


Establish existence then define not vice versa


God's existence has to be demonstrated a posteriori, Anselm's definition of God not necessarily shared by all believers


Existence could only ever be contingent


Used example of perfect island to demonstrate that if logic of argument applied to things other than God it led to invalid conclusions

Counter-arguments to Gaunilo

Perfect island: no intrinsic maximum, subjective and contingent


Has failed to grasp full implications of concept of God according to Anselm

Reductio ad absurdum

Method of reasoning aiming to show truth of something by reducing to absurdity the very opposite

Anselm's definition of God

'that than which nothing greater can be conceived'


French rationalist philosopher

Descartes' definition of God

'supremely perfect being'

Cancer, evil dictators and tsunamis

Things we would consider more perfect if only existed in the mind

De dicto

By definition

In intellectu

In the mind

In re

In reality

Please allow access to your computer’s microphone to use Voice Recording.

Having trouble? Click here for help.

We can’t access your microphone!

Click the icon above to update your browser permissions and try again


Reload the page to try again!


Press Cmd-0 to reset your zoom

Press Ctrl-0 to reset your zoom

It looks like your browser might be zoomed in or out. Your browser needs to be zoomed to a normal size to record audio.

Please upgrade Flash or install Chrome
to use Voice Recording.

For more help, see our troubleshooting page.

Your microphone is muted

For help fixing this issue, see this FAQ.

Star this term

You can study starred terms together

Voice Recording