On 8/2/2016 9:55 AM, Bruno Marchal wrote:
(2) The Church-Turing thesis; and
(3) Arithmetical realism;
(3) is redundant. There is no (2) without (3).
?? Why not? 2+2=4 only expresses a true relation of concepts. It no
more entails the reality of 2 and 4 than "Watson was Sherlock Holmes
friend." entails the existent of Sherlock Holmes.
Brent
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