Difference between revisions of "Metamath"
m (Fix licenses) |
m (Fix license) |
||
Line 22: | Line 22: | ||
}} | }} | ||
{{Project license | {{Project license | ||
− | |License= | + | |License=CC0 |
|License copyright=Metamath databases | |License copyright=Metamath databases | ||
|License verified by=strange_quark | |License verified by=strange_quark |
Revision as of 17:37, 20 May 2017
Metamath
http://www.metamath.org
A language and a proof verifier for developing formalized mathematical proofs.
Metamath is a language and a proof verifier for developing and verifying strictly formalized mathematical proofs, bundled with collaborated databases containing thousands of proven theorems including conventional results in logic, set theory, number theory, group theory, algebra, analysis, topology and various other topics. All proofs are in the form of Hilbert-style formulas.
Included databases:
- ZFC set theory
- New Foundations set theory
- Higher-order logic
- Intuitionistic logic
- Hilbert space
- Quantum logic
Licensing
License
Verified by
Verified on
Notes
License
Verified by
strange_quark
Verified on
20 May 2017
Notes
Most of the source files include "GNU General Public License" without clearly indicating which version. However, the main source file explicitly states to be licensed under "GNU General Public License Version 2 or any later version".
Leaders and contributors
Contact(s) | Role |
---|---|
Norman Megill | Author |
Resources and communication
Software prerequisites
Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free Documentation License, Version 1.3 or any later version published by the Free Software Foundation; with no Invariant Sections, no Front-Cover Texts, and no Back-Cover Texts. A copy of the license is included in the page “GNU Free Documentation License”.
The copyright and license notices on this page only apply to the text on this page. Any software or copyright-licenses or other similar notices described in this text has its own copyright notice and license, which can usually be found in the distribution or license text itself.