The Possibility Of Necessity :: essays research papers

<a href="http//www.geocities.com/vaksam/">Sam Vaknins Psychology, Philosophy, Economics and Foreign Affairs clear SitesSome things be logic onlyy mathematical (LP). Others ar physically possible (PP) and yet others are Physically Actual (PA). The things that are logically essential (LN) are excluded from this discussion because they constitute a meta-level they result from the true theorems in the logical systems within which LP, PP and PA reside. In other words the LN are about relationships between the three other categories. The interactions between the three categories (LP, PP, PA) mince the LN through the application of the rules (and theorems) of the logical system within which all foursome reside. We are, therefore, faced with hexad questions. The answers to three of them we know the answers to the other three are a great mystery. The questions are Is all(prenominal) LP in addition PP? Is every LP also PA? Is every PP also PA? Is every PP also LP? Is eve ry PA also LP? Is every PA also PP? Every PP moldiness be also LP. The physical world is ruled by the laws of reputation which are organized in logical systems. The rules of nature are all LP and whatever obeys them essential also be LP. Whatever is PA must be PP (otherwise it will not have actualized). Since every PP is also LP every PA must also be LP. And, of course, nothing impossible dejection actually exist so, every PA must also be PP. That something exists implies that it must also be possible. But what is the relationship between requirement and existence? If something is necessary does it lowly that it must exist? It would seem so. And if something exists does it mean that it was necessary? Not necessarily. It really depends on how one chooses to define necessity. A thought system can be constructed in which if something exists, it implies its necessity. An example evolutionary adaptations. If an organism acquired some organ or trait it exists because it was dee med necessary by evolution. And thought systems can be constructed in which if something is of necessity it does not necessarily mean that it will exist. Consider human society. There are six modes of possibility Logical (something is possible if its negation constitutes a contradiction, a logical impossibility). metaphysical (something is possible if it is consistent with metaphysical necessities) Nomological (something is possible if it is consistent with scientific laws)