| author | regensbu |
| Thu, 29 Jun 1995 16:28:40 +0200 | |
| changeset 1168 | 74be52691d62 |
| parent 752 | b89462f9d5f1 |
| child 1274 | ea0668a1c0ba |
| permissions | -rw-r--r-- |
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(* Title: HOLCF/sprod3.thy |
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ID: $Id$ |
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Author: Franz Regensburger |
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Copyright 1993 Technische Universitaet Muenchen |
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Class instance of ** for class pcpo |
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*) |
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Sprod3 = Sprod2 + |
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arities "**" :: (pcpo,pcpo)pcpo (* Witness sprod2.ML *) |
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consts |
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spair :: "'a -> 'b -> ('a**'b)" (* continuous strict pairing *)
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sfst :: "('a**'b)->'a"
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ssnd :: "('a**'b)->'b"
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ssplit :: "('a->'b->'c)->('a**'b)->'c"
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syntax |
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"@stuple" :: "['a, args] => 'a ** 'b" ("(1'(|_,/ _|'))")
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translations |
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"(|x, y, z|)" == "(|x, (|y, z|)|)" |
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"(|x, y|)" == "spair`x`y" |
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rules |
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inst_sprod_pcpo "(UU::'a**'b) = Ispair UU UU" |
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defs |
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spair_def "spair == (LAM x y.Ispair x y)" |
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sfst_def "sfst == (LAM p.Isfst p)" |
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ssnd_def "ssnd == (LAM p.Issnd p)" |
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ssplit_def "ssplit == (LAM f. strictify`(LAM p.f`(sfst`p)`(ssnd`p)))" |
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end |
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