| author | Christian Urban <urbanc@in.tum.de> | 
| Wed, 15 Nov 2017 00:17:15 +0000 | |
| changeset 533 | cdda105ca664 | 
| parent 435 | e08431a78f66 | 
| permissions | -rw-r--r-- | 
| 412 | 1  | 
def ders(s: List[Char], r: Rexp) : Rexp = s match {
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117
 
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Christian Urban <christian dot urban at kcl dot ac dot uk> 
parents: 
93 
diff
changeset
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2  | 
case Nil => r  | 
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435
 
e08431a78f66
updated
 
Christian Urban <christian dot urban at kcl dot ac dot uk> 
parents: 
422 
diff
changeset
 | 
3  | 
case c::s => ders(s, simp(der(c, r)))  | 
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117
 
25999de692b2
added slides
 
Christian Urban <christian dot urban at kcl dot ac dot uk> 
parents: 
93 
diff
changeset
 | 
4  | 
}  |