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Actually Penrose has the idea/argument from Lucas, which has been written in 1959 and published in 1961 : https://www.jstor.org/stable/3749270 https://www.jstor
by GigaMos 10y ago
Actually Penrose has the idea/argument from Lucas, which has been written in 1959 and published in 1961 : https://www.jstor.org/stable/3749270 https://www.jstor.org/stable/3749270