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1 (* Title: HOL/Codatatype/Examples/HFset.thy |
1 (* Title: HOL/BNF/Examples/HFset.thy |
2 Author: Andrei Popescu, TU Muenchen |
2 Author: Andrei Popescu, TU Muenchen |
3 Copyright 2012 |
3 Copyright 2012 |
4 |
4 |
5 Hereditary sets. |
5 Hereditary sets. |
6 *) |
6 *) |
7 |
7 |
8 header {* Hereditary Sets *} |
8 header {* Hereditary Sets *} |
9 |
9 |
10 theory HFset |
10 theory HFset |
11 imports "../Codatatype" |
11 imports "../BNF" |
12 begin |
12 begin |
13 |
13 |
14 |
14 |
15 section {* Datatype definition *} |
15 section {* Datatype definition *} |
16 |
16 |