Applying two definitions of the union of IF-events, P. Grzegorzewski gave two generalizations of the inclusion-exclusion principle for IF-events.In this paper we prove an inclusion-exclusion principle for IF-states based on a method which can also be used to prove Grzegorzewski's inclusion-exclusion principle for probabilities on IF-events.Finally, we give some applications of this principle by...

The equivalence principle, which states the local equivalence between acceleration and gravity, requires that a free falling observer must result in a co-moving local Minkowski space. On the other hand, covariance principle assumes any Gaussian system to be valid as a space-time coordinate system. Given the mathematical existence of the co-moving local Minkowski space along a time-like geodesic...

The present study examined the acquisition of anaphora in English by Iranian EFL learners as well as Persian speaking children. To do so, the study was conducted in three phases. In the first phase, 40 intermediate female and male EFL learners were selected from Puyan Institute in Takestan, Iran. Then, an off-line based Grammatical Judgment Task was administered. In the second phase, 40 female ...

principle of justice and equity is a term, although it is seen in recent jurisprudents' writings, which have not been explained clearly at all. therefore, some of the jurisprudents do not accept this term as a principle; some others accept it as a principle and consider its implementation in case of being a special reason; and other group of jurisprudents accept it as a principle but limit...