Download PDF by Harry Henderson: Alan Turing: Computing Genius and Wartime Code Breaker

By Harry Henderson

ISBN-10: 0816061750

ISBN-13: 9780816061754

This paintings offers the lifestyles and noteworthy accomplishments of a famous 20th-century scientist whose remarkable contributions to his box have garnered world wide admire and popularity.

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Extra resources for Alan Turing: Computing Genius and Wartime Code Breaker

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Equivalent to showing that the Decision Problem posed by Hilbert could not be solved. A Universal Machine If a Turing machine could be used only to solve the decision problem or other problems in mathematical logic, it would still have been an important milestone in mathematics. However, the Turing machine has another important characteristic: It is a universal machine. Turing showed that his machine would compute anything that could be computed. True, there are problems that the Calculating Minds 35 device might take an infinite amount of time to compute, but that was a matter of engineering.

Wittgenstein is often considered to be the founder of modern philosophy. Also called “analytical philosophy,” this approach focused on the analysis of propositions, statements, and assertions. ” If not, it wasn’t a valid question at all. In the preface to his massive work, the Tractatus LogicoPhilosophicus, Wittgenstein says: The whole sense of the book might be summed up in the following words: what can be said at all can be said clearly, and what we cannot talk about we must pass over in silence.

In 1910, Bertrand Russell and Alfred North Whitehead (1861– 1947) published the first volume of Principia Mathematica, an ambitious attempt to create a comprehensive and consistent mathematical logic. However, in 1931, the very year Turing arrived at Cambridge, the German/Austrian mathematician Kurt Gödel (1906–78) proved that there were assertions about numbers that were perfectly legal by the rules of mathematics but could not be proven to be either true or false. The struggle to determine the ultimate validity of mathematics also had important implications for philosophy (Russell and Whitehead were philosophers as well as mathematicians).

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Alan Turing: Computing Genius and Wartime Code Breaker by Harry Henderson

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