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Systems of Logic Based on Ordinals was the PhD dissertation of the mathematician Alan Turing. [1] [2]Turing's thesis is not about a new type of formal logic, nor was he interested in so-called "ranked logic" systems derived from ordinal or relative numbering, in which comparisons can be made between truth-states on the basis of relative veracity.
Alan Turing was driven to a terrible despair and early death by the nation he'd done so much to save. This remains a shame on the British government and British history. A pardon can go some way to healing this damage. It may act as an apology to many of the other gay men, not as well-known as Alan Turing, who were subjected to these laws. [193]
Turingery [1] or Turing's method [2] (playfully dubbed Turingismus by Peter Ericsson, Peter Hilton and Donald Michie [3]) was a manual codebreaking method devised in July 1942 [4] by the mathematician and cryptanalyst Alan Turing at the British Government Code and Cypher School at Bletchley Park during World War II.
Jack Copeland is the Director of the Turing Archive for the History of Computing, [6] an extensive online archive on the computing pioneer Alan Turing. He has also written and edited books on Turing. He is one of the people responsible for identifying the concept of hypercomputation and machines more capable than Turing machines.
Alan Turing in the 1930s. Alan Turing was an English mathematician, computer scientist, logician, cryptanalyst, philosopher and theoretical biologist. [5] Turing was highly influential in the development of theoretical computer science, providing a formalisation of the concepts of algorithm and computation with the Turing machine, which can be considered a model of a general-purpose computer.
In computer science, a universal Turing machine (UTM) is a Turing machine capable of computing any computable sequence, [1] as described by Alan Turing in his seminal paper "On Computable Numbers, with an Application to the Entscheidungsproblem". Common sense might say that a universal machine is impossible, but Turing proves that it is possible.
In computability theory, a system of data-manipulation rules (such as a model of computation, a computer's instruction set, a programming language, or a cellular automaton) is said to be Turing-complete or computationally universal if it can be used to simulate any Turing machine [1] [2] (devised by English mathematician and computer scientist Alan Turing).
The Turing Guide is divided into eight main parts, covering various aspects of Alan Turing's life and work: [3]. Biography: Biographical aspects of Alan Turing.; The Universal Machine and Beyond: Turing's universal machine (now known as a Turing machine), developed while at King's College, Cambridge, which provides a theoretical framework for reasoning about computation, a starting point for ...