author | paulson |
Tue, 16 Jul 1996 15:49:46 +0200 | |
changeset 1868 | 836950047d85 |
parent 1266 | 3ae9fe3c0f68 |
child 2031 | 03a843f0f447 |
permissions | -rw-r--r-- |
goal String.thy "hd(''ABCD'') = CHR ''A''"; by(Simp_tac 1); result(); goal String.thy "hd(''ABCD'') ~= CHR ''B''"; by(Simp_tac 1); result(); goal String.thy "''ABCD'' ~= ''ABCX''"; by(Simp_tac 1); result(); goal String.thy "''ABCD'' = ''ABCD''"; by(Simp_tac 1); result(); goal String.thy "''ABCDEFGHIJKLMNOPQRSTUVWXYZ'' ~= ''ABCDEFGHIJKLMNOPQRSTUVWXY''"; by(Simp_tac 1); result();