author | wenzelm |
Tue, 20 May 1997 19:29:50 +0200 | |
changeset 3257 | 4e3724e0659f |
parent 2841 | c2508f4ab739 |
child 3842 | b55686a7b22c |
permissions | -rw-r--r-- |
2841
c2508f4ab739
Added "discrete" CPOs and modified IMP to use those rather than "lift"
nipkow
parents:
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1 |
(* Title: HOLCF/Discrete.ML |
c2508f4ab739
Added "discrete" CPOs and modified IMP to use those rather than "lift"
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parents:
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ID: $Id$ |
c2508f4ab739
Added "discrete" CPOs and modified IMP to use those rather than "lift"
nipkow
parents:
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Author: Tobias Nipkow |
c2508f4ab739
Added "discrete" CPOs and modified IMP to use those rather than "lift"
nipkow
parents:
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Copyright 1997 TUM |
c2508f4ab739
Added "discrete" CPOs and modified IMP to use those rather than "lift"
nipkow
parents:
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*) |
c2508f4ab739
Added "discrete" CPOs and modified IMP to use those rather than "lift"
nipkow
parents:
diff
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6 |
|
c2508f4ab739
Added "discrete" CPOs and modified IMP to use those rather than "lift"
nipkow
parents:
diff
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7 |
goalw thy [undiscr_def] "undiscr(Discr x) = x"; |
c2508f4ab739
Added "discrete" CPOs and modified IMP to use those rather than "lift"
nipkow
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8 |
by(Simp_tac 1); |
c2508f4ab739
Added "discrete" CPOs and modified IMP to use those rather than "lift"
nipkow
parents:
diff
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9 |
qed "undiscr_Discr"; |
c2508f4ab739
Added "discrete" CPOs and modified IMP to use those rather than "lift"
nipkow
parents:
diff
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10 |
Addsimps [undiscr_Discr]; |
c2508f4ab739
Added "discrete" CPOs and modified IMP to use those rather than "lift"
nipkow
parents:
diff
changeset
|
11 |
|
c2508f4ab739
Added "discrete" CPOs and modified IMP to use those rather than "lift"
nipkow
parents:
diff
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goal thy |
c2508f4ab739
Added "discrete" CPOs and modified IMP to use those rather than "lift"
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13 |
"!!S::nat=>('a::term)discr. is_chain(S) ==> range(%i.f(S i)) = {f(S 0)}"; |
c2508f4ab739
Added "discrete" CPOs and modified IMP to use those rather than "lift"
nipkow
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diff
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14 |
by(fast_tac (!claset addDs [discr_chain0] addEs [arg_cong]) 1); |
c2508f4ab739
Added "discrete" CPOs and modified IMP to use those rather than "lift"
nipkow
parents:
diff
changeset
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15 |
qed "discr_chain_f_range0"; |
c2508f4ab739
Added "discrete" CPOs and modified IMP to use those rather than "lift"
nipkow
parents:
diff
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16 |
|
c2508f4ab739
Added "discrete" CPOs and modified IMP to use those rather than "lift"
nipkow
parents:
diff
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17 |
goalw thy [cont,is_lub,is_ub] "cont(%x::('a::term)discr.f x)"; |
c2508f4ab739
Added "discrete" CPOs and modified IMP to use those rather than "lift"
nipkow
parents:
diff
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18 |
by(simp_tac (!simpset addsimps [discr_chain_f_range0]) 1); |
c2508f4ab739
Added "discrete" CPOs and modified IMP to use those rather than "lift"
nipkow
parents:
diff
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19 |
qed "cont_discr"; |
c2508f4ab739
Added "discrete" CPOs and modified IMP to use those rather than "lift"
nipkow
parents:
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20 |
AddIffs [cont_discr]; |