| − | '''Circular reasoning''' is a form of [[Logical fallacy#Proof by assertion|proof by assertion]], often used by [[Atheist|Atheists]] and [[evolutionist]]s in which one uses a [[conclusion]] of an argument as a [[premise]] to that same argument, that is, ending where it began. This is also known as ''petitio principii'' or ''begging the question.'' | + | '''Circular reasoning''' is a form of [[Logical fallacy#Proof by assertion|proof by assertion]], often used by [[Atheist|Atheists]] and [[evolutionist]]s in which one uses a [[conclusion]] of an argument as a [[premise]] to that same argument, that is, ending where it began. This is also known as ''petitio principii'' or ''begging the question.'' It is considered invalid and therefore is not permitted by the rules of [[formal logic]]. Nevertheless, circular reasoning is the current trend in [[science]] or rather [[postmodern science]], respectively, when new discoveries are interpreted within the prevailing paradigms so as to appear to bolster it, especially by using the popular media.<ref name="DismantlingBB">{{cite book|author=Alex Williams, John Hartnett|title=Dismantling the Big Bang|publisher=Master Books|location=Green Forest, AR, USA|year=2005|page=101|pages=269|isbn=978-0-89051-437-5|url=http://books.google.com/books?id=FR7basoxkSwC&printsec=frontcover&dq=hartnett+dismantling+the+big+bang&hl=en&sa=X&ei=JvNwT_6nJJOP4gTP6fG_Ag&sqi=2&ved=0CC4Q6AEwAA#v=onepage&q=hartnett%20dismantling%20the%20big%20bang&f=false}}</ref> |