915 resultados para geometric reasoning
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With this are bound: Jay, William. Address delivered before the American Peace Society. Boston, 1845; Peabody, A.P. Nature and influence of war. Boston, 1843.
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Mode of access: Internet.
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Mode of access: Internet.
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Tr. of: La psychologie du raisonnement
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Mode of access: Internet.
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First published 1874.
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Mode of access: Internet.
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Mode of access: Internet.
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"July 1987."
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Includes bibliographical references.
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Mimeographed.
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Bibliography: leaf 46.
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Includes bibliographical references and index.
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In a previous paper R. Mathon gave a new construction method for maximal arcs in finite Desarguesian projective planes via closed sets of conics, as well as giving many new examples of maximal arcs. In the current paper, new classes of maximal arcs are constructed, and it is shown that every maximal arc so constructed gives rise to an infinite class of maximal arcs. Apart from when they are of Denniston type or dual hyperovals, closed sets of conics are shown to give maximal arcs that are not isomorphic to the known constructions. An easy characterisation of when a closed set of conics is of Denniston type is given. Results on the geometric structure of the maximal arcs and their duals are proved, as well as on elements of their collineation stabilisers.
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We utilize anthropic reasoning to demonstrate that we are typical observers of our reference class under a self-sampling assumption by investigating the definition of what a civilization is. With reference to the conflict between such reasoning and the observational lack of extra-terrestrial intelligent life, we conclude that a part of our theoretical understanding of the Universe will be at fault.