| author | Christian Urban <urbanc@in.tum.de> | 
| Mon, 13 Feb 2017 23:22:45 +0000 | |
| changeset 476 | 147a5560efd7 | 
| parent 435 | e08431a78f66 | 
| permissions | -rw-r--r-- | 
| 412 | 1 | def ders(s: List[Char], r: Rexp) : Rexp = s match {
 | 
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 Christian Urban <christian dot urban at kcl dot ac dot uk> parents: 
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changeset | 2 | case Nil => r | 
| 435 
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 Christian Urban <christian dot urban at kcl dot ac dot uk> parents: 
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changeset | 3 | case c::s => ders(s, simp(der(c, r))) | 
| 117 
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 Christian Urban <christian dot urban at kcl dot ac dot uk> parents: 
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changeset | 4 | } |