We present a generalization of Levesque's logic All I Know by presenting it as an extension of usual modal logics. We study how logic All I Know can represent complete and incomplete knowledge in Logical Information Systems. In these information systems, a knowledge base is a collection of objects (e.g., les, bibliographical references) described in a logical way, furthermore in the same logic ...

asking about the place of religion in a democratic society refers straightforwardly to the kind of pluralism we adopt. given that intra-societal tensions mark out a democratic pluralistic society, then it seems that there is no doubt that there should be a place for religion and religious people in it. what is crucial for a democratic society is taking a suitable view on pluralism. there could ...

to know every phenomenon the first step is to know its root. hygiene and medicine have noble origin from the beginning of the recorded human history; in fact, they have been the milestone of human society. medical history will help us to know this background and roots and achaemenid period as a brilliant age of iranian heritage is meritorious to be studied. the present study is an attempt to fi...