lcp [Tue, 22 Nov 1994 23:32:16 +0100] rev 729
Pure/tctical/protect_subgoal: simplified to use Sequence.hd
Pure/tctical/DEPTH_FIRST: now suppresses duplicate solutions
lcp [Tue, 22 Nov 1994 23:30:49 +0100] rev 728
Pure/term: commented typ_subst_TVars, subst_TVars, subst_Vars, subst_vars
lcp [Mon, 21 Nov 1994 18:48:03 +0100] rev 727
ZF INDUCTIVE DEFINITIONS: Simplifying the type checking for mutually
recursive datatypes, especially with monotone operators
ZF/add_ind_def/add_fp_def: deleted as obsolete
ZF/add_ind_def/add_fp_def_i: now takes dom_sum instead of domts. We no
longer automatically construct a sum of separate domains, but could use a
sum-closed set such as univ(A).