abstract:In mathematics, a binary relation, R, is well-founded (or wellfounded) on a class X if and only if every non-empty subset of X has a minimal element with respect to R; that is, for every non-empty subset S of X, there is an element m of S such that for every element s of S, the pair (s,m) is not in R:
"I consider that this decision to be political, I did not kill Litvinenko, I have no relation to his death and I can only express well-founded distrust for the so-called basis of proof collected by British judicial officials, " Mr Lugovoi was quoted as saying.