isCopyleft

P12720
predicate

Indicates that the subject is governed by a copyleft license, requiring derivative works to be distributed under the same or compatible licensing terms.

Try in SPARQL

All labels observed (7)

Label Occurrences
isCopyleft canonical 12
copyleft 11
copyleftScope 9

Description generation (PDg)

The one-sentence description above was generated by prompting gpt-5.1 with the predicate name and this instruction.

Instruction
Given a predicate that represents a relationship or action between entities, generate a one-sentence description explaining its meaning.  
# Instructions
Focus on describing the relationship, not the entities themselves. 
# Response Format
Begin the description with \' Indicates...\'
Input
Predicate: isCopyleft
Generated description
Indicates that the subject is governed by a copyleft license, requiring derivative works to be distributed under the same or compatible licensing terms.

Sample triples (42)

Subject Object
W3C Document License false ⓘ
GNU General Public License strong copyleft via predicate surface "copyleftStrength" ⓘ
Apache License 2.0 false via predicate surface "copyleft" ⓘ
Python Software Foundation License false ⓘ
MIT License no via predicate surface "copyleft" ⓘ
GNU Lesser General Public License modifications to the LGPL-covered library via predicate surface "copyleftScope" ⓘ
GNU Lesser General Public License derivative works of the LGPL-covered library via predicate surface "copyleftScope" ⓘ
GNU Affero General Public License modified versions must be licensed under the same license via predicate surface "copyleftCondition" ⓘ
GNU Affero General Public License source code must be made available to users interacting over a network via predicate surface "copyleftCondition" ⓘ
Apache License 1.1 false ⓘ
PHP License false ⓘ
MPL 2.0 file-level via predicate surface "copyleftScope" ⓘ
Apple Public Source License file-level copyleft via predicate surface "copyleftScope" ⓘ
Expat License non-copyleft via predicate surface "copyleftStatus" ⓘ
CC0 no via predicate surface "requiresShareAlike" ⓘ
Apache License 2.0 with LLVM exceptions false ⓘ
University of Illinois/NCSA Open Source License
linked to: University of Illinois/NCSA Open Source License (historical)
no via predicate surface "copyleft" ⓘ
University of Illinois/NCSA Open Source License
linked to: University of Illinois/NCSA Open Source License (historical)
false ⓘ
CDDL weak copyleft via predicate surface "copyleftStrength" ⓘ
CDDL file-based via predicate surface "copyleftScope" ⓘ
CDDL modifications to CDDL-licensed files must remain under CDDL via predicate surface "copyleftCondition" ⓘ
Oracle Binary Code License false via predicate surface "copyleft" ⓘ
ISC license no via predicate surface "copyleft" ⓘ
Apache License 1.0 no via predicate surface "copyleft" ⓘ
PostgreSQL License no ⓘ
PostgreSQL License none via predicate surface "copyleftStrength" ⓘ
Knuth license false ⓘ
Zope Public License false ⓘ
MPL 1.1 weak via predicate surface "copyleftStrength" ⓘ
MPL 1.1 file-level via predicate surface "copyleftScope" ⓘ
Artistic License 1.0 no via predicate surface "copyleft" ⓘ
Mozilla Public License file-level via predicate surface "copyleftScope" ⓘ
Mozilla Public License
linked to: MPL
individual source files covered by MPL via predicate surface "copyleftScope" ⓘ
W3C Software Notice and License false via predicate surface "copyleft" ⓘ
Microsoft Public License
linked to: Microsoft Public License (Ms-PL)
false via predicate surface "copyleft" ⓘ
Microsoft Public License
linked to: Microsoft Public License (Ms-PL)
no ⓘ
APL (AROS Public License) individual source files via predicate surface "copyleftScope" ⓘ
Eclipse Distribution License false ⓘ
MIT License
linked to: MIT
no via predicate surface "copyleft" ⓘ
Open Database License true via predicate surface "requiresShareAlike" ⓘ
GNU All-permissive License no via predicate surface "copyleft" ⓘ
GNU All-permissive License false ⓘ