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1 (* Title: thys/Rec_Def.thy |
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2 Author: Jian Xu, Xingyuan Zhang, and Christian Urban |
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3 Modifications: Sebastiaan Joosten |
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4 *) |
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5 |
1 theory Rec_Def |
6 theory Rec_Def |
2 imports Main |
7 imports Main |
3 begin |
8 begin |
4 |
9 |
5 datatype recf = z |
10 datatype recf = z |