the history of legislations and statutory law securities markets in iran represents a scattered and haphazard adoption for other jurisdictions without a proper attention to the theoretical foundations of foreign laws. this has led to incompetent and alien laws to the indigenous conditions. as such a theoretical investigation of the foundations and policies behind such laws is inevitable. as far...

In his theory of natural laws David Lewis rejects the authenticity impossible worlds on grounds that contradiction contained within modifier "in (the world) w" is tantamount to a in whole theory, which seems unacceptable. At same time, philosophical discourse very often researchers use counterfactual situations and thought experiments with events objects. There need apply genuine, concrete, but...

In most expert systems, efforts are made to keep the rules in the knowledge base free from contradictions., because a logical system that generates even a single contradiction may collapse. We argue that not only can contradictions be tolerated, but in fact they are useful. An excellent test of an argument is to compare it with the best argument for the opposing view. Accordingly, we propose a ...