A lot has been made about the lack of proof in many debates around here and in other forums. But what is scientific proof? Does it require a mathematical formula?
Princeton web dictonary:
a formal series of statements showing that if one thing is true something else necessarily follows from it
Philosophy Text:
A formal demonstration of the validity of a deductive argument
Mine:
a
measure of alcoholic strength expressed as an integer twice the percentage of alcohol present (by volume) 
Wikipedia:
a rigorous, compelling argument, including:
a logical argument or a mathematical proof (see also proof theory).
a legal proof.
a large accumulation of scientific evidence
What do you guys think? Can a scientific proof (so often asked for) be derived from a preponderance of evidence, or do we require sound, logical mathmatics or something else to claim "proof" of so and so, or some theory or another?
