Recursion theory captures the idea of computation in logical and arithmetic terms; its most classical achievements are the undecidability of the Entscheidungsproblem by Alan Turing, and his presentation of the Church Turing thesis.
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Gavin said mission directors for the Polar Lander have recruited " the brightest groups of interplanetary people from industry and everywhere else " to make sure everyone speaks the same language and uses the same arithmetic terms when the lander finally reaches Mars.
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