| author | wenzelm | 
| Mon, 05 Aug 2002 21:17:04 +0200 | |
| changeset 13457 | 7ddcf40a80b3 | 
| parent 297 | 5ef75ff3baeb | 
| permissions | -rw-r--r-- | 
| 
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c22b85994e17
Franz Regensburger's Higher-Order Logic of Computable Functions embedding LCF
 
nipkow 
parents:  
diff
changeset
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1  | 
(* Title: HOLCF/stream2.thy  | 
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c22b85994e17
Franz Regensburger's Higher-Order Logic of Computable Functions embedding LCF
 
nipkow 
parents:  
diff
changeset
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2  | 
ID: $Id$  | 
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c22b85994e17
Franz Regensburger's Higher-Order Logic of Computable Functions embedding LCF
 
nipkow 
parents:  
diff
changeset
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3  | 
Author: Franz Regensburger  | 
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c22b85994e17
Franz Regensburger's Higher-Order Logic of Computable Functions embedding LCF
 
nipkow 
parents:  
diff
changeset
 | 
4  | 
Copyright 1993 Technische Universitaet Muenchen  | 
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c22b85994e17
Franz Regensburger's Higher-Order Logic of Computable Functions embedding LCF
 
nipkow 
parents:  
diff
changeset
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5  | 
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c22b85994e17
Franz Regensburger's Higher-Order Logic of Computable Functions embedding LCF
 
nipkow 
parents:  
diff
changeset
 | 
6  | 
Additional constants for stream  | 
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c22b85994e17
Franz Regensburger's Higher-Order Logic of Computable Functions embedding LCF
 
nipkow 
parents:  
diff
changeset
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7  | 
*)  | 
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c22b85994e17
Franz Regensburger's Higher-Order Logic of Computable Functions embedding LCF
 
nipkow 
parents:  
diff
changeset
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8  | 
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c22b85994e17
Franz Regensburger's Higher-Order Logic of Computable Functions embedding LCF
 
nipkow 
parents:  
diff
changeset
 | 
9  | 
Stream2 = Stream +  | 
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c22b85994e17
Franz Regensburger's Higher-Order Logic of Computable Functions embedding LCF
 
nipkow 
parents:  
diff
changeset
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10  | 
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c22b85994e17
Franz Regensburger's Higher-Order Logic of Computable Functions embedding LCF
 
nipkow 
parents:  
diff
changeset
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11  | 
consts  | 
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c22b85994e17
Franz Regensburger's Higher-Order Logic of Computable Functions embedding LCF
 
nipkow 
parents:  
diff
changeset
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12  | 
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c22b85994e17
Franz Regensburger's Higher-Order Logic of Computable Functions embedding LCF
 
nipkow 
parents:  
diff
changeset
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13  | 
smap		:: "('a -> 'b) -> 'a stream -> 'b stream"
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c22b85994e17
Franz Regensburger's Higher-Order Logic of Computable Functions embedding LCF
 
nipkow 
parents:  
diff
changeset
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14  | 
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c22b85994e17
Franz Regensburger's Higher-Order Logic of Computable Functions embedding LCF
 
nipkow 
parents:  
diff
changeset
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15  | 
rules  | 
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c22b85994e17
Franz Regensburger's Higher-Order Logic of Computable Functions embedding LCF
 
nipkow 
parents:  
diff
changeset
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16  | 
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c22b85994e17
Franz Regensburger's Higher-Order Logic of Computable Functions embedding LCF
 
nipkow 
parents:  
diff
changeset
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17  | 
smap_def  | 
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c22b85994e17
Franz Regensburger's Higher-Order Logic of Computable Functions embedding LCF
 
nipkow 
parents:  
diff
changeset
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18  | 
"smap = fix[LAM h f s. stream_when[LAM x l.scons[f[x]][h[f][l]]][s]]"  | 
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c22b85994e17
Franz Regensburger's Higher-Order Logic of Computable Functions embedding LCF
 
nipkow 
parents:  
diff
changeset
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19  | 
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c22b85994e17
Franz Regensburger's Higher-Order Logic of Computable Functions embedding LCF
 
nipkow 
parents:  
diff
changeset
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20  | 
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c22b85994e17
Franz Regensburger's Higher-Order Logic of Computable Functions embedding LCF
 
nipkow 
parents:  
diff
changeset
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21  | 
end  | 
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243
 
c22b85994e17
Franz Regensburger's Higher-Order Logic of Computable Functions embedding LCF
 
nipkow 
parents:  
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23  | 
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c22b85994e17
Franz Regensburger's Higher-Order Logic of Computable Functions embedding LCF
 
nipkow 
parents:  
diff
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24  | 
(*  | 
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c22b85994e17
Franz Regensburger's Higher-Order Logic of Computable Functions embedding LCF
 
nipkow 
parents:  
diff
changeset
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25  | 
smap[f][UU] = UU  | 
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c22b85994e17
Franz Regensburger's Higher-Order Logic of Computable Functions embedding LCF
 
nipkow 
parents:  
diff
changeset
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26  | 
x~=UU --> smap[f][scons[x][xs]] = scons[f[x]][smap[f][xs]]  | 
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c22b85994e17
Franz Regensburger's Higher-Order Logic of Computable Functions embedding LCF
 
nipkow 
parents:  
diff
changeset
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27  | 
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c22b85994e17
Franz Regensburger's Higher-Order Logic of Computable Functions embedding LCF
 
nipkow 
parents:  
diff
changeset
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28  | 
*)  | 
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c22b85994e17
Franz Regensburger's Higher-Order Logic of Computable Functions embedding LCF
 
nipkow 
parents:  
diff
changeset
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29  |