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Its country of origin is the United Kingdom. This work is in the public domain there, as well as in Italy, because the copyright term for literary works in both countries is 70 years P.M.A.<ref>Copyright, Designs and Patents Act 1988, section 12 (2).</ref><ref>''Legge 633/1941,'' article 25.</ref> and the author died before 1952. | Its country of origin is the United Kingdom. This work is in the public domain there, as well as in Italy, because the copyright term for literary works in both countries is 70 years P.M.A.<ref>Copyright, Designs and Patents Act 1988, section 12 (2).</ref><ref>''Legge 633/1941,'' article 25.</ref> and the author died before 1952. | ||
Additionally, it is in the public domain in the United States because it was published in 1913 and everything that was published before 1 January 1927 is now in the public domain in the US. | Additionally, it is in the public domain in the United States because it was published in 1913 and everything that was published before 1 January 1927 is now in the public domain in the US.<ref name="hirtle-chart" /> | ||
=== Notes on Logic === | === Notes on Logic === |