| changeset 9998 | 09bf8fcd1c6e |
| parent 9969 | 4753185f1dd2 |
| child 10042 | 7164dc0d24d8 |
| 9997:38598a19e701 | 9998:09bf8fcd1c6e |
|---|---|
4 Copyright 1999 Technische Universitaet Muenchen |
4 Copyright 1999 Technische Universitaet Muenchen |
5 *) |
5 *) |
6 |
6 |
7 Goalw [newref_def] |
7 Goalw [newref_def] |
8 "hp x = None \\<longrightarrow> hp (newref hp) = None"; |
8 "hp x = None \\<longrightarrow> hp (newref hp) = None"; |
9 by (fast_tac (claset() addIs [someI2EX] addss (simpset())) 1); |
9 by (fast_tac (claset() addIs [someI2_ex] addss (simpset())) 1); |
10 qed_spec_mp "newref_None"; |
10 qed_spec_mp "newref_None"; |