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theory Datatypes
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imports "../Nominal2"
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begin
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(*
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plain nominal_datatype definition without an
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atom_decl - example by John Matthews
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*)
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nominal_datatype 'a Maybe =
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Nothing
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| Just 'a
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thm Maybe.distinct
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thm Maybe.induct
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thm Maybe.exhaust
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thm Maybe.fv_defs
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thm Maybe.bn_defs
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thm Maybe.perm_simps
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thm Maybe.eq_iff
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thm Maybe.fv_bn_eqvt
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thm Maybe.size_eqvt
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thm Maybe.supp
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(*
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using a datatype inside a nominal_datatype
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*)
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atom_decl name
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datatype foo = Foo | Bar
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instantiation foo :: pure
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begin
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definition
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"p \<bullet> (f::foo) = f"
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instance
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apply(default)
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apply(simp_all add: permute_foo_def)
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done
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end
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nominal_datatype baz =
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Baz x::name t::foo bind x in t
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thm baz.distinct
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thm baz.induct
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thm baz.exhaust
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thm baz.fv_defs
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thm baz.bn_defs
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thm baz.perm_simps
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thm baz.eq_iff
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thm baz.fv_bn_eqvt
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thm baz.size_eqvt
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thm baz.supp
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end
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