If you wish, I can quote plenty of atheist authors on the subject of atheism regarding what atheism is, and they are arguably the experts on the subject, being atheists themselves.
Are we done with the battle of the sources yet? No philosophical issues can be settled simply by looking up dictionary definitions or encyclopedia entries. Let's focus on ideas, argumentation, and evidence.
Yes, please site the many atheists who agree with each other on fallacious reasoning so they may have the advantage come debate.
This wasn't a battle of the sources. Yours were copy and pasted from Wikipedia. With their definition of theism Wikipedia states,
Put simply theism and atheism deal with belief, and agnosticism deals with (absence of) rational claims to asserting knowledge. So which one do you believe? Of course Wikipedia is a crude source being as how I can make entries into it. So again here is atheists making an assertions in their favour. My sources were giving an objective meaning of the word before the lack of belief thing became popularized by internet infidels like yourself. (Although it has been around much longer)
Here is why I have such a problem with this:
In 2009 I came onto this site very secure in my belief that Jesus Christ is the son of God. I wanted to start studying the arguments for both sides to see if a logical conclusion could be reached and so I started a thread called Atheists, What's Your Problem?????. I put lots of question marks for the troll effect. The point of the thread was to find what arguments you had to not believe in God and to my utter shock and dismay I was met with not that you guys believe God does not exist, but that you lack belief. I have never even heard of that in my entire life. If asked my beliefs on anything I may reply, "I don't know", but never that I lack belief. It made no sense to me, I had to have it explained and I still couldn't understand it. Unfortunately I was given no good reasons to believe God did not exist as well. Not one. Very disappointing.
So here are my reasons for calling this not only fallacious, but devious. The first reason is never in my life when asked about a belief on anything have I answered I lack belief. The very idea of that makes anyone I tell it too raise an eyebrow. I am talking about friends and family who have no dealings arguing on the internet. So it would seem epistemically impossible and intuitively deceptive.
So I looked into the logic behind the reasoning and I believe this to be fallacious on a two tier level.
1) Poison the well
2) Ad Hoc reasoning
Poisoning the well can be 1. Unfavourable definitions (be it true or false) which prevent disagreement (or enforce affirmative position) 2. Any claims without first agreeing with above definitions are automatically dismissed.
You do that with your lack of belief making it so you do not have to bring up arguments of your own but merely get to play the role of the skeptic. If I don't agree with that then the conversation breaks down into one we are having now.
Ad Hoc reasoning simply means the addition of extraneous hypothesis to a theory to save it from being falsified. However here it is not your position you are trying to keep from being falsified, it is the burden of proof on your end. By combining these two things you have made it so all you have to do now is pick away at the arguments without having to launch arguments of your own.
In closing I feel validated in saying this is outright dishonesty on the part of atheists. You have stacked the deck in your favour, asking for an impossible burden of proof for God's existence (something no atheist has ever been able to explain exactly what that is yet) while not having to defend your reason for thinking He does not exist. Alright for the village atheist I guess, but for the people that study this stuff, it's time to grow a pair.