5,454 research outputs found

    The Vampire and the FOOL

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    This paper presents new features recently implemented in the theorem prover Vampire, namely support for first-order logic with a first class boolean sort (FOOL) and polymorphic arrays. In addition to having a first class boolean sort, FOOL also contains if-then-else and let-in expressions. We argue that presented extensions facilitate reasoning-based program analysis, both by increasing the expressivity of first-order reasoners and by gains in efficiency

    Automated Theorem Proving with Extensions of First-Order Logic

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    Automated theorem provers are computer programs that check whether a logical conjecture follows from a set of logical statements. The conjecture and the statements are expressed in the language of some formal logic, such as first-order logic. Theorem provers for first-order logic have been used for automation in proof assistants, verification of programs, static analysis of networks, and other purposes. However, the efficient usage of these provers remains challenging. One of the challenges is the complexity of translating domain problems to first-order logic. Not only can such translation be cumbersome due to semantic differences between the domain and the logic, but it might inadvertently result in problems that provers cannot easily handle.The work presented in the thesis addresses this challenge by developing an extension of first-order logic named FOOL. FOOL contains syntactical features of programming languages and more expressive logics, is friendly for translation of problems from various domains, and can be efficiently supported by existing theorem provers. We describe the syntax and semantics of FOOL and present a simple translation from FOOL to plain first-order logic. We describe an efficient clausal normal form transformation algorithm for FOOL and based on it implement a support for FOOL in the Vampire theorem prover. We illustrate the efficient use of FOOL for program verification by describing a concise encoding of next state relations of imperative programs in FOOL. We show a usage of features of FOOL in problems of static analysis of networks. We demonstrate the efficiency of automated theorem proving in FOOL with an extensive set of experiments. In these experiments we compare the performance of Vampire on a large collection of problems from various sources translated to FOOL and ordinary first-order logic. Finally, we fix the syntax for FOOL in TPTP, the standard language of first-order theorem provers

    C-can We Rest Now? : Foucault and the Multiple Discursive Subjectivities of Spike

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    Excerpt: Besides the lead character herself, the leather-clad vampire Spike -- introduced as the Big Bad in Buffy the Vampire Slayer (BtVS) Season 2 -- the most analyzed character in the Buffyverse

    Representation of Marxism in Vampires in Havana

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    Article presents an animated film related to ideological development in Cuba. This effort brings an understanding of ideology and cultural policy of Cuba as a communist state. Presentation begins with summary of the story, history and background, ideological concepts, and the movie Vampires in Havana itself. It is concluded that the film represents ideological disputes between capitalism and Marxism in Cuba, as well as giving an ideal perspective on how the world should work

    But, You\u27re Just A Girl

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    This paper explores an emerging genre of the female hero archetype that is rooted in Joseph Campbell’s traditional definition and exemplified by Buffy Summers of the television series Buffy the Vampire Slayer and Kara “Starbuck” Thrace of Battlestar Galactica. As representations of the female hero within this genre, they reimagine pre-existing stereotypes, such as the female victim and the male hotshot pilot, and then pursue a hero’s journey of death and resurrection that is unique because of their gender. This new trend is the result of third-wave feminism and necessary for the further development of feminist literary works, particularly within the realm of Sci-Fi/Fantasy

    Enchanted South Tarot: A Contemporary Interpretation of Tarot

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    This project uses qualitative research to create an original 78-card tarot deck. Its focus is to create a tarot deck informed by the rich history and symbolism of tarot while utilizing original art and unique experiences to create a one-of-a-kind deck. The deck’s artwork showcases flora, fauna, and manufactured objects of the Southeastern United States, referencing traditional tarot archetypes to select each card’s imagery. The deck’s guidebook introduces readers to some of the history of tarot and several historical and contemporary decks that inspired the Enchanted South deck. The project emphasizes tarot’s evolution and how each artist’s contribution adds layers of meaning, sparks discourse and solidifies tarot’s position as a legitimate form of artistic expression
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