| author | wenzelm |
| Thu, 14 Dec 2000 19:37:27 +0100 | |
| changeset 10673 | 337c00fd385b |
| parent 10045 | c76b73e16711 |
| permissions | -rw-r--r-- |
|
10045
c76b73e16711
New theories: construction of hypernaturals, nonstandard extensions,
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(* Title : HRealAbs.thy |
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c76b73e16711
New theories: construction of hypernaturals, nonstandard extensions,
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Author : Jacques D. Fleuriot |
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c76b73e16711
New theories: construction of hypernaturals, nonstandard extensions,
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parents:
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Copyright : 1998 University of Cambridge |
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c76b73e16711
New theories: construction of hypernaturals, nonstandard extensions,
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Description : Absolute value function for the hyperreals |
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New theories: construction of hypernaturals, nonstandard extensions,
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*) |
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c76b73e16711
New theories: construction of hypernaturals, nonstandard extensions,
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New theories: construction of hypernaturals, nonstandard extensions,
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HRealAbs = HyperOrd + RealAbs + |
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c76b73e16711
New theories: construction of hypernaturals, nonstandard extensions,
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defs |
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hrabs_def "abs r == if (0::hypreal) <=r then r else -r" |
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New theories: construction of hypernaturals, nonstandard extensions,
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end |