Nominal/Ex/SingleLet.thy
author Christian Urban <urbanc@in.tum.de>
Wed, 14 Jul 2010 21:30:52 +0100
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theory SingleLet
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imports "../NewParser"
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begin
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atom_decl name
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declare [[STEPS = 16]]
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nominal_datatype trm  =
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  Var "name"
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| App "trm" "trm"
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| Lam x::"name" t::"trm"  bind_set x in t
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| Let a::"assg" t::"trm"  bind_set "bn a" in t
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| Foo x::"name" y::"name" t::"trm" t1::"trm" t2::"trm" bind_set x in y t t1 t2
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| Bar x::"name" y::"name" t::"trm" bind y x in t x y
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| Baz x::"name" t1::"trm" t2::"trm" bind x in t1, bind x in t2 
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and assg =
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  As "name" x::"name" t::"trm" bind x in t
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binder
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  bn::"assg \<Rightarrow> atom set"
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where
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  "bn (As x y t) = {atom x}"
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typ trm
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typ assg
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term Var 
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term App
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term Baz
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term bn
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term fv_trm
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lemma [quot_respect]: 
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  "(op =  ===> alpha_trm_raw) Var_raw Var_raw"
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  "(alpha_trm_raw ===> alpha_trm_raw ===> alpha_trm_raw) App_raw App_raw"
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apply(auto)
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apply(rule alpha_trm_raw_alpha_assg_raw_alpha_bn_raw.intros)
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apply(rule refl)
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apply(rule alpha_trm_raw_alpha_assg_raw_alpha_bn_raw.intros)
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apply(assumption)
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apply(assumption)
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done
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lemma "Var x \<noteq> App y1 y2"
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apply(descending)
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apply(simp add: trm_raw.distinct)
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ML {*
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  map (lift_thm [@{typ trm}, @{typ assg}] @{context}) @{thms trm_raw.distinct(1)}
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*}
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typ trm
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typ assg
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thm trm_assg.fv
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thm trm_assg.supp
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thm trm_assg.eq_iff
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thm trm_assg.bn
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thm trm_assg.perm
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thm trm_assg.induct
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thm trm_assg.inducts
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thm trm_assg.distinct
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ML {* Sign.of_sort @{theory} (@{typ trm}, @{sort fs}) *}
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(* TEMPORARY
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thm trm_assg.fv[simplified trm_assg.supp(1-2)]
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*)
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end
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