| author | paulson | 
| Mon, 12 Nov 2001 12:38:06 +0100 | |
| changeset 12158 | f60fe41e96e9 | 
| parent 12030 | 46d57d0290a2 | 
| child 14981 | e73f8140af78 | 
| permissions | -rw-r--r-- | 
| 2640 | 1 | (* Title: HOLCF/Ssum1.thy | 
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Franz Regensburger's Higher-Order Logic of Computable Functions embedding LCF
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changeset | 2 | ID: $Id$ | 
| 1479 | 3 | Author: Franz Regensburger | 
| 12030 | 4 | License: GPL (GNU GENERAL PUBLIC LICENSE) | 
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Franz Regensburger's Higher-Order Logic of Computable Functions embedding LCF
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changeset | 5 | |
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Franz Regensburger's Higher-Order Logic of Computable Functions embedding LCF
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changeset | 6 | Partial ordering for the strict sum ++ | 
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Franz Regensburger's Higher-Order Logic of Computable Functions embedding LCF
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changeset | 7 | *) | 
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Franz Regensburger's Higher-Order Logic of Computable Functions embedding LCF
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changeset | 8 | |
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Franz Regensburger's Higher-Order Logic of Computable Functions embedding LCF
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changeset | 9 | Ssum1 = Ssum0 + | 
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Franz Regensburger's Higher-Order Logic of Computable Functions embedding LCF
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changeset | 10 | |
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eliminated the constant less by the introduction of the axclass sq_ord
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changeset | 11 | instance "++"::(pcpo,pcpo)sq_ord | 
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changeset | 12 | |
| 2640 | 13 | defs | 
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changeset | 14 | less_ssum_def "(op <<) == (%s1 s2.@z. | 
| 3842 | 15 | (! u x. s1=Isinl u & s2=Isinl x --> z = u << x) | 
| 16 | &(! v y. s1=Isinr v & s2=Isinr y --> z = v << y) | |
| 17 | &(! u y. s1=Isinl u & s2=Isinr y --> z = (u = UU)) | |
| 18 | &(! v x. s1=Isinr v & s2=Isinl x --> z = (v = UU)))" | |
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changeset | 19 | |
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Franz Regensburger's Higher-Order Logic of Computable Functions embedding LCF
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changeset | 20 | end | 
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Franz Regensburger's Higher-Order Logic of Computable Functions embedding LCF
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changeset | 21 | |
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Franz Regensburger's Higher-Order Logic of Computable Functions embedding LCF
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changeset | 22 |