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파일:Wacław Sierpiński.jpg

Wacław_Sierpiński.jpg ‎(330 × 457 픽셀, 파일 크기: 101 KB, MIME 종류: image/jpeg)

설명
English: Wacław Sierpiński ( 1882 – 1969) - Polish mathematician. He was known for outstanding contributions to set theory (research on the axiom of choice and the continuum hypothesis), number theory, theory of functions and topology
날짜
출처 "IKC" 1928 see also http://audiovis.nac.gov.pl/obraz/98444/c7222d201d9e56fd0f1398189ada0fe2/
저자 unknown-anonymous
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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.
This applies to the European Union and those countries with a copyright term of 70 years after the work was made available to the public and the author never disclosed their identity.
Important: Always mention where the image comes from, as far as possible, and make sure the author never claimed authorship.
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현재2015년 8월 15일 (토) 23:312015년 8월 15일 (토) 23:31 판의 섬네일330 × 457 (101 KB)Andros64{{Information |Description ={{en|1=Wacław Sierpiński ( 1882 – 1969) - Polish mathematician. He was known for outstanding contributions to set theory (research on the axiom of choice and the [[co...

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