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metamath / metamath-knife

Metamath-knife can rapidly verify Metamath proofs, providing strong confidence that the proofs are correct.
Apache License 2.0
25 stars 10 forks source link

`Formula` is now using `Arc` #23

Closed tirix closed 2 years ago

tirix commented 2 years ago

This (shall) make copying and extracting sub-formulas cheaper.