wenzelm [Wed, 03 Apr 2019 23:29:19 +0200] rev 70048
tuned signature;
wenzelm [Wed, 03 Apr 2019 21:50:00 +0200] rev 70047
clarified signature: more explicit operations for corresponding Isar commands;
wenzelm [Wed, 03 Apr 2019 21:11:21 +0200] rev 70046
proper URL;
paulson <lp15@cam.ac.uk> [Thu, 04 Apr 2019 16:38:45 +0100] rev 70045
fixed markup in Poly_Mapping; Free_Abelian_Groups (but not yet imported by Algebra!)
paulson <lp15@cam.ac.uk> [Thu, 04 Apr 2019 14:19:33 +0100] rev 70044
More group theory. Sum and product indexed by the non-neutral part of a set
paulson <lp15@cam.ac.uk> [Wed, 03 Apr 2019 16:38:59 +0100] rev 70043
theory Poly_Mapping
paulson <lp15@cam.ac.uk> [Wed, 03 Apr 2019 16:38:27 +0100] rev 70042
new theory Library/Poly_Mapping, of almost-everywhere-zero functions
paulson <lp15@cam.ac.uk> [Wed, 03 Apr 2019 15:14:36 +0100] rev 70041
Material concerning exact sequences of groups
paulson <lp15@cam.ac.uk> [Wed, 03 Apr 2019 14:55:30 +0100] rev 70040
Products and sums of a family of groups
paulson <lp15@cam.ac.uk> [Wed, 03 Apr 2019 12:55:27 +0100] rev 70039
new group theory material, mostly ported from HOL Light