The ontological argument is an argument for god's existence based entirely on reason according to this argument, there is no need to go out looking for physical evidence of god's existence we can work out that he exists just by thinking about it. Without an ontological argument, explanation must either end in some brute, unexplained fact, or turn into an infinite regress, where the there is no end to explanation in order to ensure that explanation comes to a final halt (and a halt with no loose, unexplained end), it is necessary that there be some level of reality that causes itself. As an a priori argument, the ontological argument tries to prove the existence of god by establishing the necessity of god's existence through an explanation of the concept of existence or necessary being. An overview of the major ontological arguments for the existence of a god, that is, arguments drawn from analytic, a priori premises rather than observations of the natural world includes histories, taxonomies, objections to, characteristics of the ontological argument, and a bibliography. The ontological argument a most merry and illustrated history, explanation, and correction (with a short course in formal logic thrown in) st anselm.
Explanation  ontology is the study of being, reality, and existence the ontological argument is an attempt at proving the existence of god through reasoning about the nature of being. These examples of ontological are from the cambridge english corpus and from sources on the web these examples are from the cambridge english corpus and from sources on the web any opinions in the examples do not represent the opinion of the cambridge dictionary editors or of cambridge university. The ontological argument, on the other hand, is alone in maintaining that god's existence can be established a priori without recourse to empirical evidence - that is, evidence drawn from experience - and thus solely on the basis of an analysis of the concept of god' (a question of god page 3.
The other problem with this defense of the ontological argument threatens to undermine the advantages provided by a top-down approach for recall that the ontological argument depends on a further great-making property the possession of which can generate an inference from possible existence to necessary existence. I accept the modal ontological argument as logically sound this argument argues the existence of god based on the mere concept/definition of god explanation of. Anselm of canterbury wikipedia's reprint from the scholarly 1911 encyclopedia britannica on anselm's life and works anselm, the ontological argument a short selection of anselm's argument from proslogium 2 in the online reading for philosophical inquiry on this site.
Differently put, the ontological argument is a completely analytical argument so when it says god exists, this is no different than saying bachelors are unmarried it's not new information regarding bachelors, but rather just an explanation of what the word means. Ontological arguments are arguments, for the conclusion that god exists, from premises which are supposed to derive from some source other than observation of the world—eg, from reason alone. If god is defined as the most excellent being, the summum bonum in latin, then if he is regarded as the cause of existence, then what better explanation could there be moral objectivists regard preferability as an objective feature of existence, or at least of certain choices for psychial beings.
Today, i want to focus on the ontological argument from reason, which asserts that there cannot be reasoning in a naturalistic world, because reasoning requires libertarian free will, and this in turn requires a unified, enduring self with active power. The existence of a necessary being is not contingent on anything else therefore, there can't be one set of circumstances that would cause him to exist in one kind of reality but another set of circumstances that wouldn't, such that he would exist in some possible worlds but not in others. Anselm of canterbury (1033—1109) saint anselm was one of the most important christian thinkers of the eleventh century he is most famous in philosophy for having discovered and articulated the so-called ontological argument and in theology for his doctrine of the atonement.
The ontological argument for god's existence was first laid out in the form we see today by anselm of canterbury (1033--1109) who was a monk living in france and england and writing about. As stated by anselm, the ontological argument is simple, yet subtle he said that god is the greatest being we can imagine if he did not exist, we could imagine a greater being—namely, a divine being who does exist. The ontological argument is, roughly, the argument that god, being that than which no greater can be conceived, must exist, for if he did not then it would be possible to conceive of an existent god, which would be greater than that than which no greater can be conceived, which is absurd. Anselm's ontological argument for the existence of god anselm's argument is an a priori argument that is, it is an argument that is independent of experience and based solely on concepts and logical relations, like a mathematical.