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Slide 1

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Ontological Argument…read more

Slide 2

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Concepts/ key features
· The ontological argument is a priori meaning
that it does not rely on evidence of the senses
but reason alone, it is deductive meaning that
the argument contains the conclusion and is
structured in such a way that the conclusion is
the only possible one that can be deducted
from its premises. It is also analytic meaning
that it is true by definition alone so we do not
need any other information to understand
what it means.…read more

Slide 3

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· Anselm argued that God is that than which nothing
greater can be conceived, meaning that it is impossible
to think of anything greater.
· Anselm then went on to say that if God merely existed
in intellectu (the mind) we would be able to conceive
of a greater being (one which existed). Therefore, the
greatest conceivable being cannot exist in the mind
only, must he must exist in re (reality) as well. This
apparently radical assumption is based on the principle
that existence itself is perfection.
· In Proslogion 3 Anselm seeks to show that God's
existence is necessary, if God could come in and out of
existence he would not be the greatest, therefore, God
cannot not exist and to say so would be absurd.…read more

Slide 4

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· God is the supremely perfect being, being the
supremely perfect being means that he must
possess all perfections, existence is perfection,
therefore, God being the supremely perfect
being must exist…read more

Slide 5

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· If we applied this logical to other things it would lead
to an invalid conclusion.
· Replacing god with the greatest conceivable island,
would lead to an argument which had the same form
as Anselm's, with true premises and yet which leads to
a false conclusion.
· Since part of perfection Anselm was arguing about
included existence, the island must exist- otherwise
even the most horrible island was better than the
imaginary one. An island that only exists in the mind
would not be perfect, so it must exist in reality too.
· Anselm- Island's are contingent and they aren't
perfect.…read more

Slide 6

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· Existence is not a predicate.
· Existence is not associated with the definition
of something, since it does not add to our
understanding of that thing.
· Apparently it is one of God's qualities but it
isn't a quality at all.…read more

Slide 7

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Slide 8

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