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The “reversed c in a full circle” is the copyleft symbol. It is the copyright symbol mirrored. Unlike the copyright symbol, it has no legal meaning.
Copyleft is a play on the word copyright and describes the practice of using copyright law to remove restrictions on distributing copies and modified versions of a work for others and requiring that the same freedoms be preserved in modified versions. Copyleft is a form of licensing and may be used to modify copyrights for works such as computer software, documents, music, and art. In general, copyright law allows an author to prohibit others from reproducing, adapting, or distributing copies of the author's work. In contrast, an author may, through a copyleft licensing scheme, give every person who receives a copy of a work permission to reproduce, adapt or distribute the work as long as any resulting copies or adaptations are also bound by the same copyleft licensing scheme. A widely used and originating copyleft license is the GNU General Public License. Similar licenses are available through Creative Commons — called Share-alike. Copyleft may also be characterized as a copyright licensing scheme in which an author surrenders some but not all rights under copyright law. Instead of allowing a work to fall completely into the public domain (where no copyright restrictions are imposed), copyleft allows an author to impose some but not all copyright restrictions on those who want to engage in activities that would otherwise be considered copyright infringement. Under copyleft, copyright infringement may be avoided if the would-be infringer perpetuates the same copyleft scheme. For this reason copyleft licenses are also known as viral or reciprocal licenses. IRC Chat channels
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Last news  Charged West Papuans Get Ill-Ireatment In Prison  Allarme nazirock,un documentario su come può risorgere il nazifascismo in Italia  Linked by Thom Holwerda on Tue 20th Mar 2007 22:16 UTC Linked by Eugenia Loli-Queru on Sun 15th Apr 2007 20:11 UTC  Teatro Camelot e la Filanda Teatro presentano "La battaglia tra Digiuno e Mangiacarne"  Recent Original Stories A lengthy debate that began with a suggestion to dual license the Linux kernel under the GPLv2 and the GPLv3 continues ...  La plataforma yosoyAutor.org nace para defender el copyleft en el ámbito de la propiedad intelectual La Santanchè:"Berlusconi è ossessionato da me. Ma io non gliela do..." Recent Original Stories Top websites  Copyleft - Wikipedia, the free encyclopedia  What is Copyleft? - GNU Project - Free Software Foundation (FSF)  copyleft: Definition and Much More from Answers.com  Image:Copyleft.svg - Wikimedia Commons  Wikitravel:Copyleft - Wikitravel  Licenses - GNU GPL, GNU LGPL, GNU FDL, General Public License, Lesser General Public License, Free Documentation ... Copyleft - Wikipedia  Copyleft - Wikitravel Shared  What is Copyleft? - Free Software Foundation  Meatball Wiki: CopyLeft Posts in groups Re: Non-Profit Open Software License 3.0 ... copies of Original Work or Derivative Works that You distribute or communicate shall be licensed under this Non-Profit Open Software License or as provided in section 17(d); This is a copyleft-like clause. As already discussed elsewhere in this thread, it's not a DFSG-freeness issue, but causes the license to be GPL-incompatible, which is always annoying. [...] 3) Grant of ... Re: Estadisticas mensuales: marzo On 10 abr, 04:36, Estadisticas <deabruNOUSEESTECOR...@ono.com> wrote: StatNews Report (Revision: 2.2) Copyleft GPL (C) 1998-2003 by Davide Giovanni Maria Salvetti (traducido y modificado por deabru) Grupo....................: es.charla.moteros Fecha del analisis.......: Jue 10... Estadisticas mensuales: marzo StatNews Report (Revision: 2.2) Copyleft GPL (C) 1998-2003 by Davide Giovanni Maria Salvetti (traducido y modificado por deabru) Grupo....................: es.charla.moteros Fecha del analisis.......: Jue 10 Abr 2008 (GMT) 02:41 Inicio del periodo.......: Sab 1 Mar 2008 (GMT) 00:00 Fin ... Re: VAZNO: OVA GRUPA *NE SLUZI* za testove i probe ! ... sluzi iskljucivo za pitanja oko nejasnoca prilikom koristenja news-a (npr. tamo bi mogli pitati "gdje se mogu slati testne poruke" ili "kako se podesavaju hrvatska slova u Outlook Expressu" ili sl.) Cesto postavljana pitanja i pravila (malo zastarjela, ali vecinom aktualna) mozete pronaci na http://newusers.cjb.net/ -- Opinions above are GNU-copylefted. Re: Clarification about PDF file license ...a slightly modified variant of) the old license used by the FSF for GNU manuals back when the horrible GFDL had not yet been written... It meets the DFSG, as far as I can tell. It's a weak copyleft and I think it is not compatible with the GNU GPL (v2 or v3). This file was produced from TeXinfo sources that are not available in the tarball but can be found in the SVN repository ... Re: Jaki program pokazuje typ szyfrowania ? Użytkownik Q popełnił co następuje: mi takie coś na laptopie pokazuje windowsowy programik obsługujący sieć bezprzewodową.... masz viste ? /w golym xp nie ma takiego cuda :( XP Home Edition. Zrobię screena jutro jak nie zapomnę. -- Adrian S. "Dyskietki ? To te plastikowe kwadraciki do flashowania biosów w pecetach ?" copyleft by Krzysztof Halasa Komp nie wykrywa dysku ... jak się spodziewam partycja sda1). W /proc/partitions nic dodatkowego się nie pojawia. Pojawia się urządzenie /dev/sda ale nic z tym nie można zrobić, cfdisk mówi Fatal error. System i jajko skonfigurowane tak, że pendrive'y śmigają. Co jeszcze można sprawdzić? -- Adrian S. "Dyskietki ? To te plastikowe kwadraciki do flashowania biosów w pecetach ?" copyleft by Krzysztof Halasa Re: Bug#460591: Falcon P.L. license (ITP:Bug#460591) ... "wordings" that wasn't what I wanted it to be. Moreover, the term "publicly perform" in the copyleft grants anyone the right to run applications of Falcon the way it likes. So, in accordance to the above statement: 1) Data (scripts) is free from copyright/left. 2) you can run the copylefted thing on any data, any way you like. Please, notice that this is more than what GPL actually ... top(1) visual improvement opinion ...display.c --- display.c 1 Jul 2005 19:33:35 -0000 1.22 +++ display.c 7 Apr 2008 09:25:03 -0000 @@ -943,7 +943,8 @@ * format_k */ COPYLEFT(p, thisname + 1); - } else if (num 0) { + } else if (num 0 || (thisname[0] == 'Z' && num = 0) ) {... Re: Filtrowanie spamu - KMail ... dystrybucji (Debian? fe!) U mnie w Gentoo KMail z SA działa powiedzmy OOTB, znaczy się po zainstalowaniu składników. Jedyna zmiana, którą można zrobić, to uruchomienie spamd i filtrowanie maili za pomocą komendy spamc --opcje zamiast spamassassin --opcje. -- Adrian S. "Dyskietki ? To te plastikowe kwadraciki do flashowania biosów w pecetach ?" copyleft by Krzysztof Halasa |
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Open source software development-Just another case of collective invention? [An article from: Research Policy]