An
axiom or
postulate as defined in
classic philosophy, is a statement (in mathematics often shown in symbolic form) that is so
evident or well-established, that it is accepted without controversy or question. Thus, the axiom can be used as the
premise or starting point for further reasoning or arguments, usually in logic or in mathematics The word comes from the Greek
axíoma 'that which is thought worthy or fit' or 'that which commends itself as evident.'