| Sat, 02 Nov 2019 20:52:24 +0000 | paulson | merged | changeset | files |
| Sat, 02 Nov 2019 20:51:54 +0000 | paulson | just tidied one proof | changeset | files |
| Sat, 02 Nov 2019 20:56:22 +0100 | wenzelm | proper graph traversal -- avoid exponential blowup (amending 71d1971d67ad); | changeset | files |