wenzelm [Sat, 13 Apr 2019 18:50:48 +0200] rev 70154
clarified: use existing Thm.dest_ctyp_fun (which is more strict);
wenzelm [Sat, 13 Apr 2019 16:56:12 +0200] rev 70153
prefer exception TYPE, e.g. when used within conversion;
wenzelm [Sat, 13 Apr 2019 16:42:19 +0200] rev 70152
tuned signature -- more ctyp operations;
wenzelm [Sat, 13 Apr 2019 16:33:33 +0200] rev 70151
clarified group of "main" library sessions;
wenzelm [Sat, 13 Apr 2019 16:26:19 +0200] rev 70150
tuned signature -- more ctyp operations;
wenzelm [Sat, 13 Apr 2019 15:14:15 +0200] rev 70149
merged
wenzelm [Sat, 13 Apr 2019 15:13:43 +0200] rev 70148
tuned signature: more operations;
haftmann [Sat, 13 Apr 2019 08:43:33 +0000] rev 70147
backed out a93e6472ac9c, which does not bring anything substantial: division_ring is not commutative in multiplication but semidom_divide is