| Wed, 07 Aug 2019 18:23:32 +0200 | wenzelm | prefer named lemmas -- more compact proofterms; | changeset | files |
| Wed, 07 Aug 2019 17:43:48 +0200 | wenzelm | more compact proofterms; | changeset | files |
| Wed, 07 Aug 2019 17:00:07 +0200 | wenzelm | eliminated pointless comments; | changeset | files |