Alien Registration- Shostak, Annie (Augusta, Kennebec County)

https://digitalmaine.com/alien_docs/19060/thumbnail.jp

A Framework for the Flexible Integration of a Class of Decision Procedures into Theorem Provers

The role of decision procedures is often essential in theorem proving. Decision procedures can reduce the search space of heuristic components of a prover and increase its abilities. However, in some applications only a small number of conjectures fall within the scope of the available decision procedures. Some of these conjectures could in an informal sense fall ‘just outside’ that scope. In these situations a problem arises because lemmas have to be invoked or the decision procedure has to communicate with the heuristic component of a theorem prover. This problem is also related to the general problem of how to exibly integrate decision procedures into heuristic theorem provers. In this paper we address such problems and describe a framework for the exible integration of decision procedures into other proof methods. The proposed framework can be used in different theorem provers, for different theories and for different decision procedures. New decision procedures can be simply ‘plugged-in’ to the system. As an illustration, we describe an instantiation of this framework within the Clam proof-planning system, to which it is well suited. We report on some results using this implementation

Roth\u27s Graveyards, Narrative Desire, and Professional Competition with Death

In her article Roth\u27s Graveyards, Narrative Desire, and \u27Professional Competition with Death\u27 Debra Shostak analyzes Philip Roth\u27s 1954 short story The Day It Snowed and surveys a range of his books. Shostak offers a reading of Sabbath\u27s Theater and Everyman to explore Roth\u27s fictional forms and his conception of storytelling, elucidates how the traumatic knowledge of death at graveside initiates the psychoanalytic process of repression, repetition, remembering, and telling, and uncovers several motifs or formal strategies that appear when Roth deploys cemetery scenes: the linear plotting toward death is often embraced within circular narrative structures; the voice of the mother, dead or alive, presides over the protagonist\u27s traumatic confrontation with mortality; and the narrative represents the battle waged between eros and thanatos. From the beginning of his career, Roth has sent his characters to meditate in graveyards or over coffins at crucial junctures such as narrative beginnings and endings. Drawing on psychoanalytic accounts of narrative desire, Shostak argues that Roth is preoccupied with the graveyard scene as a symbolic incitement to the compulsion that he calls in The Human Stain professional competition with death