Thu, 06 Jan 2011 13:28:40 +0000 | Christian Urban | cleaned up weakening proof and added a version with finit sets | changeset | files |
Thu, 06 Jan 2011 13:28:19 +0000 | Christian Urban | same | changeset | files |
Thu, 06 Jan 2011 13:28:04 +0000 | Christian Urban | some further lemmas for fsets | changeset | files |