أثر النفي في إثبات مسالك العلة عند الأصوليين

الملخص EN

This research is about studying methods of identification of the effective cause ( illah ) related with effect of negation to prove it and studying fact of this effect .

This research contains two chapters and a conclusion.

In chapter one, I define the terms which are mentioned in the title of the research: methods of identification of the effective cause ( illah ) .

In chapter two , I reviewed the five methods of identification of the effective cause which effected by negation : signal ( allusion ) , appropriately isolating and partitioning restricting the qualities of the effective cause , consistence of an effective cause and reasoning to causability of description due to non-evidence for incausability .

And I explained how the negation effect with prove these methods by giving some examples as a result of this effect.

In the end, I extracted from this research some results such as chosen definitions and the fact of the effect of negation to prove methods of identification of illah.