Arkivo:Jan Łukasiewicz.jpg

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Jan_Łukasiewicz.jpg ‎(448 × 576 pixel-i, grandeso dil arkivo: 47 KB, MIME type: image/jpeg)

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Deskripto
English: Jan Łukasiewicz (21 December 1878 – 13 February 1956) Polish logician and philosopher born in Lwów, Galicia, then Austria–Hungary. His work centred on analytical philosophy and mathematical logic. He thought innovatively about traditional propositional logic, the principle of non-contradiction and the law of excluded middle. Professor of Lvov University and Warsaw University. After WW II in exie, professor of University College Dublin.
Dato
Fonto Ilustrowany Kurier Codzienny 11 1935 see also http://www.audiovis.nac.gov.pl/obraz/97484/0207c1bdd1bc17a8a73b93052b522107/
Autoro unknown-anonymous
Yurizo
(Riuzo di ica arkivo)
Public domain
This photograph is in the public domain because according to the Art. 3 of copyright law of March 29, 1926 of the Republic of Poland and Art. 2 of copyright law of July 10, 1952 of the People's Republic of Poland, all photographs by Polish photographers (or published for the first time in Poland or simultaneously in Poland and abroad) published without a clear copyright notice before the law was changed on May 23, 1994 are assumed to be in the public domain in Poland.

This work is in the public domain in the United States because it meets three requirements:

  1. it was first published outside the United States (and not published in the U.S. within 30 days),
  2. it was first published before 1 March 1989 without copyright notice or before 1964 without copyright renewal or before the source country established copyright relations with the United States,
  3. it was in the public domain in its home country (Poland) on the URAA date (1 January 1996).
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Public domain
This image (or other media file) is in the public domain because its copyright has expired and its author is anonymous.
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Note: In Germany and possibly other countries, certain anonymous works published before July 1, 1995 are copyrighted until 70 years after the death of the author. See Übergangsrecht. Please use this template only if the author never claimed authorship or their authorship never became public in any other way. If the work is anonymous or pseudonymous (e.g., published only under a corporate or organization's name), use this template for images published more than 70 years ago. For a work made available to the public in the United Kingdom, please use Template:PD-UK-unknown instead.

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novembro 1935

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Dato/HoroMiniaturoDimensioniUzeroKomento
aktuala11:44, 5 jan. 2013Imajeto di versiono ye 11:44, 5 jan. 2013448 × 576 (47 KB)Andros64{{Information |Description ={{en|1=Jan Łukasiewicz (21 December 1878 – 13 February 1956) Polish logician and philosopher born in Lwów, Galicia, then Austria–Hungary. His work centred on analytical philosophy and mathem...

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