(January 19, 2012 at 2:23 am)Perhaps Wrote: As has been stated many times, atheism is simply a statement of disbelief, but I will appreciate the fact that most atheists do support their disbelief with the use of tools such as science and logic.
To believe in something, in regards to ontological existence, without evidence is illogical, but it does not determine the epistemological value of the belief. The term, Modus ponens, comes to mind when I think about things such as this. The term translates from Latin to mean "the way that affirms by affirming" and is integral in the use of logic (the process of applying reason). All logic is based on knowledge which, of course, is subjective and very specifically temporal. An example of Modus ponens is as follows:
Wiki Wrote:If today is Tuesday, then John will go to work.
Today is Tuesday.
Therefore, John will go to work.
http://en.wikipedia.org/wiki/Modus_ponens
This aspect of logic is used to both explain the existence of God, and to disprove the existence of God by means of evidence of absence. Most individuals understand that this is a leap of logic which is perpetually without ground, and thus they revert to evidence or science.
As was stated earlier, science is the study of all that exists. Genakus gave a very impressive discussion related to the material existence of objects, as well as their ontological existence via material objects. To say that science could not understand or verify the existence of something which exists - even if it is non-physical in nature - is to create a secondary definition of science. We can scientifically verify the ontological existence of things which exist in a non-material world (ie. thoughts, emotions, etc.), but where science runs into a wall is when it predicts things which have not been experienced.
Science has the ability to verify existence, but that does not mean that it knows everything which exists. To say so, is to commit Modus ponens in the worst case, or express human arrogance in the best case.
To simplify the above: One commits a logical error by using evidence of absence as 'proof' of non-existence. One also commits a logical error by stating that sciences determines the existence of everything. It is illogical to believe in something without evidence, which is why most atheists support their disbelief by the use of logic - stating that they prefer the side with the most evidence (a logical thing to do), but it is illogical for them to state that God does not exist, as they are making an illogical statement and asserting that all existence is known. Agnosticism is the logical standpoint at the end of the day.
Lastly, metaphysics really has nothing to do with the non-material world. It is a branch in philosophy which examines other sub branches such as ontology, necessity/probability, identity, modality, causation, time and space, material objects, and free will/determinism. Metaphysics is the base of physics, which is the study of the physical world. A more appropriate term for the study of the non-material world would probably be dualism with a concentration on the non-material.
Excellent points all. You are quite good at this. I admire how simply you can say what you do without loss of precision.