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theory ExLetMult
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imports "../Parser"
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begin
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atom_decl name
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ML {* val _ = recursive := true *}
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ML {* val _ = alpha_type := AlphaLst *}
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ML {* val _ = cheat_equivp := true *}
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nominal_datatype trm =
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Vr "name"
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| Ap "trm" "trm"
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| Lm x::"name" t::"trm" bind x in t
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| Lt l::"lts" t::"trm" s::"trm" bind "bn l" in t, bind "bn l" in s
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and lts =
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Lnil
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| Lcons "name" "trm" "lts"
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binder
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bn
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where
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"bn Lnil = []"
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| "bn (Lcons x t l) = (atom x) # (bn l)"
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thm trm_lts.eq_iff
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thm trm_lts.induct
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thm trm_lts.fv[simplified trm_lts.supp]
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end
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