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New Foundations Proof Explorer (metamath.org)
2 points by jasonhansel on Sept 5, 2020 | past
Proof Explorer – Home Page – Metamath (metamath.org)
1 point by HNLurker2 on April 25, 2019 | past
Metamath (metamath.org)
167 points by lainon on Feb 19, 2019 | past | 19 comments
Mathematical Proofs as Music: Metamath Music (metamath.org)
51 points by mrccc on Feb 8, 2019 | past | 6 comments
The Axioms in the MetaMath system (metamath.org)
1 point by etaioinshrdlu on June 6, 2018 | past
2 + 2 =/= 5 (metamath.org)
2 points by mathoff on Feb 5, 2017 | past
Metamath: A Stack-Oriented Language and Proof Explorer (metamath.org)
3 points by imode on Jan 25, 2017 | past
Proof of “√2 is irrational” using only logical formulas (metamath.org)
2 points by hacker42 on May 27, 2016 | past
Metamath (metamath.org)
2 points by rfreytag on May 17, 2016 | past
Metamath (metamath.org)
1 point by andyjohnson0 on Oct 29, 2013 | past
Music for Axiom of Choice (metamath.org)
3 points by protez on March 29, 2013 | past | 1 comment
Metamath Proof Explorer: Proving 2+2=4. In detail. (metamath.org)
6 points by ColinWright on Aug 5, 2011 | past
Metamath (metamath.org)
4 points by pw0ncakes on May 5, 2010 | past
Proof of Euler's Identity (e^(i pi) = -1) in a tiny formal system (metamath.org)
2 points by bumbledraven on Jan 14, 2010 | past
Metamath - Complete proofs all the back to ZFC set theory axioms (metamath.org)
3 points by Jebdm on Jan 10, 2009 | past

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