1. bookVolume 15 (2016): Issue 1 (April 2016)
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Uma avaliação do argumento ontológico modal de Plantinga

Published Online: 30 Apr 2016
Page range: 71 - 84
Journal Details
License
Format
Journal
First Published
01 Mar 2016
Publication timeframe
3 times per year
Languages
English
Copyright
© 2020 Sciendo
Abstract

My aim in this paper is to critically assess Plantinga’s modal ontological argument for existence of God, such as it is presented in the book “The Nature of Necessity” (1974). Plantinga tries to show that this argument is (i) valid and (ii) it is rational to believe in his main premise, namely “there is a possible world in which maximal greatness is instantiated”. On the one hand, I want to show that this argument is logically valid in both systems B and S5 of modal logic. On the other hand, I think that this argument is not a good argument to show that God exists or that it is rational to believe in God.

Keywords

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