| Wed, 28 Nov 2018 16:14:31 +0100 | wenzelm | clarified signature; | file | diff | annotate |
| Wed, 10 Jan 2018 15:25:09 +0100 | nipkow | ran isabelle update_op on all sources | file | diff | annotate |
| Thu, 01 Jun 2017 21:43:36 +0200 | wenzelm | tuned signature; | file | diff | annotate |