We characterize Δ20-categoricity in Boolean algebras and linear orderings under some extra effectiveness conditions. We begin with a study of the relativized notion in these structures.

" -- Dr. Daniel Gardner, Cornell University Medical College Charles Stevens, a prominent neurobiologist who originally trained as a biophysicist (with George Uhlenbeck and Mark Kac), wrote this book almost by accident.

As time passed, I discovered with surprise that the important role I assigned to literature was not recognized by everyone.iThis essay constitutes one aspect of an overall project to spell out the implications for the literary arts of Wittgenstein's systematic distinction between acts of description that carry truth values and acts of expression that display states of mind and feeling but do not describe them. My full case will require a book. That is good news for me but bad news (...) for the present reader, since I feel I have to offer a painfully brief version of my overall theoretical position as a backdrop for what I will say about appreciation. Expressions elicit or solicit attunement rather than propose .. (shrink)

This paper is a reaction to G. Küng's and J. T. Canty's Substitutional Quantification and Leniewskian quantifiers'Theoria 36 (1970), 165–182. I reject their arguments that quantifiers in Ontology cannot be referentially interpreted but I grant that there is what can be called objectual — referential interpretation of quantifiers and that because of the unrestricted quantification in Ontology the quantifiers in Ontology should not be given a so-called objectual-referential interpretation. I explain why I am in agreement with Küng and Canty's recommendation (...) that Ontology's quantifiers not be substitutionally interpreted even if Leniewski intended them to be so interpreted. A notion of an interpretation which is referential but yet which does not interpret as an assertor of existence of objects in a domain is developed. It is then shown that a first order version of Ontology is satisfied by those special kind of referential interpretations which read as Something as epposed to Something existing. (shrink)

This book interrogates the nature and state of African American citizenship through the prism of Social Contract Theory. Challenging the United States’ commitment to African American citizenship, this book explores the idea of Social Nullification, the decision to reject, revoke and re-define the social contract with a state and society. Charles F. Peterson surveys the history of Social Contract Theory, examines Nullification as political and legal theory, argues public policy as a measure of the state’s commitment to the contractarian (...) relationship and frames the writings and activism of Martin R. Delany, Ida B. Wells-Barnett and the African American Reparations Movement as examples of Social Nullification and challenges to the terms of Black life in America. (shrink)

This article concerns the prescriptive function of decision analysis. Consider an agent who must choose an action yielding welfare that varies with an unknown state of nature. It is often asserted that such an agent should adhere to consistency axioms which imply that behavior can be represented as maximization of expected utility. However, our agent is not concerned the consistency of his behavior across hypothetical choice sets. He only wants to make a reasonable choice from the choice set that he (...) actually faces. Hence, I reason that prescriptions for decision making should respect actuality. That is, they should promote welfare maximization in the choice problem the agent actually faces. Any choice respecting weak and stochastic dominance is rational from the actualist perspective. (shrink)

In many classes of structures, each computable structure has computable dimension 1 or $\omega$. Nevertheless, Goncharov showed that for each $n < \omega$, there exists a computable structure with computable dimension $n$. In this paper we show that, under one natural definition of relativized computable dimension, no computable structure has finite relativized computable dimension greater than 1.

No detailed description available for "Strict finitism".

DNA is an important agent not only in chemistry and biology but also in technology and modern culture. A number of books approach the double helix from different angles. These perspectives include (1) the science of DNA and genetics; (2) genetic engineering; (3) the ethics of manipulating genetic material; and (4) DNA in culture and religion. Various views of DNAprovide insights into human nature beyond its molecular composition.

The purpose of this paper is to mark a significant difference between classical and several non-classical prepositional calculi. The argument presupposes familiarity with Kripke/Hintikka semantics for modal logic. The non-classical systems are Hintikka's logic of belief and alethic modal systems which have Kripke/Hintikka semantics. The difference is marked by showing that the semantic validity operator in classical logic behaves as a normal alethic necessity-operator while the non-classical semantic validity operators behave as normal deontic ought-operators. The crucial step is showing that (...) a formula, valid by non-classical semantics, can be falsified. I show that the negation of a non-classical thesis can be added to a consistent set of formulae without making the set inconsistent or any other set inconsistent. This is shown by observing that consistent sets of formulae do not need to be related to other consistent sets by any of the alternativeness relations of Kripke/Hintikka model structures for non-classical systems. The deontic behavior of non-classical semantical validity operators is interpreted as showing that being a thesis of a non-classical system means, not that the thesis is a logical truth, but that the thesis is the content of a norm on how we ought to use, crucial terms such as ‘believe’ and ‘necessity’. (shrink)

In The Gift of Jesus, beloved pastor and teacher Dr. Charles Stanley takes a deeply personal and inspiring look at how God gave us Himself through the birth of Christ. When He sent Jesus, He closed the separation between us, showing Himself to be intimately involved in every detail that concerns us. This book will usher you into Jesus' presence, reveal His compassionate heart, and help you treasure the best parts of the Advent season. --Amazon.com.