Nominal/Nominal2_FSet.thy
author Christian Urban <urbanc@in.tum.de>
Sun, 14 Nov 2010 11:05:22 +0000
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moved most material fron Nominal2_FSet into the Nominal_Base theory
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theory Nominal2_FSet
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imports "../Nominal-General/Nominal2_Base"
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        "../Nominal-General/Nominal2_Eqvt"
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begin
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lemma atom_map_fset_cong:
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  shows "map_fset atom x = map_fset atom y \<longleftrightarrow> x = y"
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  apply(rule inj_map_fset_cong)
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  apply(simp add: inj_on_def)
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  done
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lemma supp_map_fset_atom:
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  shows "supp (map_fset atom S) = supp S"
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  unfolding supp_def
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  apply(perm_simp)
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  apply(simp add: atom_map_fset_cong)
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  done
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2311a9fc4624 Strong induction for Type Schemes.
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lemma supp_at_fset:
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  fixes S::"('a::at_base) fset"
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  shows "supp S = fset (map_fset atom S)"
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  apply (induct S)
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  apply (simp add: supp_empty_fset)
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  apply (simp add: supp_insert_fset)
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  apply (simp add: supp_at_base)
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  done
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lemma fresh_star_atom:
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  fixes a::"'a::at_base"
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  shows "fset S \<sharp>* a \<Longrightarrow> atom a \<sharp> fset S"
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  apply (induct S)
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  apply (simp add: fresh_set_empty)
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  apply simp
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  apply (unfold fresh_def)
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  apply (simp add: supp_of_finite_insert)
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  apply (rule conjI)
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  apply (unfold fresh_star_def)
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  apply simp
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  apply (unfold fresh_def)
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  apply (simp add: supp_at_base supp_atom)
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  apply clarify
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  apply auto
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  done
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parents: 1973
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end