src/HOL/String.ML
author wenzelm
Fri, 03 Jul 1998 18:05:03 +0200
changeset 5126 01cbf154d926
parent 5121 5c1f89ae8aef
permissions -rw-r--r--
theory Main includes everything;

Goal "hd(''ABCD'') = CHR ''A''";
by (Simp_tac 1);
result();

Goal "hd(''ABCD'') ~= CHR ''B''";
by (Simp_tac 1);
result();

Goal "''ABCD'' ~= ''ABCX''";
by (Simp_tac 1);
result();

Goal "''ABCD'' = ''ABCD''";
by (Simp_tac 1);
result();

Goal
  "''ABCDEFGHIJKLMNOPQRSTUVWXYZ'' ~= ''ABCDEFGHIJKLMNOPQRSTUVWXY''";
by (Simp_tac 1);
result();