src/HOL/Metis_Examples/Proxies.thy
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(*  Title:      HOL/Metis_Examples/Proxies.thy
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    Author:     Jasmin Blanchette, TU Muenchen
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Example that exercises Metis's and Sledgehammer's logical symbol proxies for
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rudimentary higher-order reasoning.
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*)
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header {*
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Example that Exercises Metis's and Sledgehammer's Logical Symbol Proxies for
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Rudimentary Higher-Order Reasoning.
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*}
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theory Proxies
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imports Type_Encodings
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begin
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sledgehammer_params [prover = spass, blocking, fact_filter = mepo, timeout = 30,
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                     preplay_timeout = 0, dont_minimize]
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text {* Extensionality and set constants *}
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lemma plus_1_not_0: "n + (1\<Colon>nat) \<noteq> 0"
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by simp
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definition inc :: "nat \<Rightarrow> nat" where
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"inc x = x + 1"
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lemma "inc \<noteq> (\<lambda>y. 0)"
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sledgehammer [expect = some] (inc_def plus_1_not_0)
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by (metis_exhaust inc_def plus_1_not_0)
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lemma "inc = (\<lambda>y. y + 1)"
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sledgehammer [expect = some]
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by (metis_exhaust inc_def)
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definition add_swap :: "nat \<Rightarrow> nat \<Rightarrow> nat" where
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"add_swap = (\<lambda>x y. y + x)"
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lemma "add_swap m n = n + m"
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sledgehammer [expect = some] (add_swap_def)
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by (metis_exhaust add_swap_def)
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definition "A = {xs\<Colon>'a list. True}"
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lemma "xs \<in> A"
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(* The "add:" argument is unfortunate. *)
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sledgehammer [expect = some] (add: A_def mem_Collect_eq)
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by (metis_exhaust A_def mem_Collect_eq)
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definition "B (y::int) \<equiv> y \<le> 0"
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definition "C (y::int) \<equiv> y \<le> 1"
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lemma int_le_0_imp_le_1: "x \<le> (0::int) \<Longrightarrow> x \<le> 1"
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by linarith
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lemma "B \<le> C"
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sledgehammer [expect = some]
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by (metis_exhaust B_def C_def int_le_0_imp_le_1 predicate1I)
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text {* Proxies for logical constants *}
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lemma "id (op =) x x"
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sledgehammer [type_enc = erased, expect = none] (id_apply)
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sledgehammer [type_enc = poly_tags??, expect = some] (id_apply)
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sledgehammer [type_enc = poly_tags, expect = some] (id_apply)
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sledgehammer [type_enc = poly_guards??, expect = some] (id_apply)
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sledgehammer [type_enc = poly_guards, expect = some] (id_apply)
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sledgehammer [type_enc = mono_tags??, expect = some] (id_apply)
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sledgehammer [type_enc = mono_tags, expect = some] (id_apply)
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sledgehammer [type_enc = mono_guards??, expect = some] (id_apply)
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sledgehammer [type_enc = mono_guards, expect = some] (id_apply)
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by (metis (full_types) id_apply)
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lemma "id True"
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sledgehammer [type_enc = erased, expect = some] (id_apply)
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sledgehammer [type_enc = poly_tags??, expect = some] (id_apply)
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sledgehammer [type_enc = poly_tags, expect = some] (id_apply)
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sledgehammer [type_enc = poly_guards??, expect = some] (id_apply)
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sledgehammer [type_enc = poly_guards, expect = some] (id_apply)
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sledgehammer [type_enc = mono_tags??, expect = some] (id_apply)
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sledgehammer [type_enc = mono_tags, expect = some] (id_apply)
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sledgehammer [type_enc = mono_guards??, expect = some] (id_apply)
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sledgehammer [type_enc = mono_guards, expect = some] (id_apply)
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by (metis_exhaust id_apply)
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lemma "\<not> id False"
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sledgehammer [type_enc = erased, expect = some] (id_apply)
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sledgehammer [type_enc = poly_tags??, expect = some] (id_apply)
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sledgehammer [type_enc = poly_tags, expect = some] (id_apply)
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sledgehammer [type_enc = poly_guards??, expect = some] (id_apply)
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sledgehammer [type_enc = poly_guards, expect = some] (id_apply)
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sledgehammer [type_enc = mono_tags??, expect = some] (id_apply)
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sledgehammer [type_enc = mono_tags, expect = some] (id_apply)
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sledgehammer [type_enc = mono_guards??, expect = some] (id_apply)
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sledgehammer [type_enc = mono_guards, expect = some] (id_apply)
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by (metis_exhaust id_apply)
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lemma "x = id True \<or> x = id False"
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sledgehammer [type_enc = erased, expect = some] (id_apply)
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sledgehammer [type_enc = poly_tags??, expect = some] (id_apply)
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sledgehammer [type_enc = poly_tags, expect = some] (id_apply)
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sledgehammer [type_enc = poly_guards??, expect = some] (id_apply)
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sledgehammer [type_enc = poly_guards, expect = some] (id_apply)
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sledgehammer [type_enc = mono_tags??, expect = some] (id_apply)
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sledgehammer [type_enc = mono_tags, expect = some] (id_apply)
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sledgehammer [type_enc = mono_guards??, expect = some] (id_apply)
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sledgehammer [type_enc = mono_guards, expect = some] (id_apply)
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by (metis_exhaust id_apply)
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lemma "id x = id True \<or> id x = id False"
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sledgehammer [type_enc = erased, expect = some] (id_apply)
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sledgehammer [type_enc = poly_tags??, expect = some] (id_apply)
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sledgehammer [type_enc = poly_tags, expect = some] (id_apply)
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sledgehammer [type_enc = poly_guards??, expect = some] (id_apply)
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sledgehammer [type_enc = poly_guards, expect = some] (id_apply)
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sledgehammer [type_enc = mono_tags??, expect = some] (id_apply)
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sledgehammer [type_enc = mono_tags, expect = some] (id_apply)
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sledgehammer [type_enc = mono_guards??, expect = some] (id_apply)
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sledgehammer [type_enc = mono_guards, expect = some] (id_apply)
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by (metis_exhaust id_apply)
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lemma "P True \<Longrightarrow> P False \<Longrightarrow> P x"
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sledgehammer [type_enc = erased, expect = none] ()
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sledgehammer [type_enc = poly_args, expect = none] ()
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sledgehammer [type_enc = poly_tags??, expect = some] ()
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sledgehammer [type_enc = poly_tags, expect = some] ()
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sledgehammer [type_enc = poly_guards??, expect = some] (id_apply)
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sledgehammer [type_enc = poly_guards, expect = some] ()
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sledgehammer [type_enc = mono_tags??, expect = some] ()
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sledgehammer [type_enc = mono_tags, expect = some] ()
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sledgehammer [type_enc = mono_guards??, expect = some] ()
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sledgehammer [type_enc = mono_guards, expect = some] ()
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by (metis (full_types))
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lemma "id (\<not> a) \<Longrightarrow> \<not> id a"
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sledgehammer [type_enc = erased, expect = some] (id_apply)
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sledgehammer [type_enc = poly_tags??, expect = some] (id_apply)
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sledgehammer [type_enc = poly_tags, expect = some] (id_apply)
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sledgehammer [type_enc = poly_guards??, expect = some] (id_apply)
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sledgehammer [type_enc = poly_guards, expect = some] (id_apply)
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sledgehammer [type_enc = mono_tags??, expect = some] (id_apply)
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sledgehammer [type_enc = mono_tags, expect = some] (id_apply)
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sledgehammer [type_enc = mono_guards??, expect = some] (id_apply)
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sledgehammer [type_enc = mono_guards, expect = some] (id_apply)
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by (metis_exhaust id_apply)
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ad923cdd4a5d added example to exercise higher-order reasoning with Sledgehammer and Metis
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lemma "id (\<not> \<not> a) \<Longrightarrow> id a"
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sledgehammer [type_enc = erased, expect = some] (id_apply)
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sledgehammer [type_enc = poly_tags??, expect = some] (id_apply)
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sledgehammer [type_enc = poly_tags, expect = some] (id_apply)
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sledgehammer [type_enc = poly_guards??, expect = some] (id_apply)
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sledgehammer [type_enc = poly_guards, expect = some] (id_apply)
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sledgehammer [type_enc = mono_tags??, expect = some] (id_apply)
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sledgehammer [type_enc = mono_tags, expect = some] (id_apply)
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sledgehammer [type_enc = mono_guards??, expect = some] (id_apply)
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sledgehammer [type_enc = mono_guards, expect = some] (id_apply)
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by metis_exhaust
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ad923cdd4a5d added example to exercise higher-order reasoning with Sledgehammer and Metis
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lemma "id (\<not> (id (\<not> a))) \<Longrightarrow> id a"
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sledgehammer [type_enc = erased, expect = some] (id_apply)
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sledgehammer [type_enc = poly_tags??, expect = some] (id_apply)
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sledgehammer [type_enc = poly_tags, expect = some] (id_apply)
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sledgehammer [type_enc = poly_guards??, expect = some] (id_apply)
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sledgehammer [type_enc = poly_guards, expect = some] (id_apply)
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sledgehammer [type_enc = mono_tags??, expect = some] (id_apply)
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sledgehammer [type_enc = mono_tags, expect = some] (id_apply)
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sledgehammer [type_enc = mono_guards??, expect = some] (id_apply)
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sledgehammer [type_enc = mono_guards, expect = some] (id_apply)
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by (metis_exhaust id_apply)
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ad923cdd4a5d added example to exercise higher-order reasoning with Sledgehammer and Metis
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lemma "id (a \<and> b) \<Longrightarrow> id a"
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sledgehammer [type_enc = erased, expect = some] (id_apply)
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sledgehammer [type_enc = poly_tags??, expect = some] (id_apply)
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sledgehammer [type_enc = poly_tags, expect = some] (id_apply)
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sledgehammer [type_enc = poly_guards??, expect = some] (id_apply)
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sledgehammer [type_enc = poly_guards, expect = some] (id_apply)
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sledgehammer [type_enc = mono_tags??, expect = some] (id_apply)
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sledgehammer [type_enc = mono_tags, expect = some] (id_apply)
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sledgehammer [type_enc = mono_guards??, expect = some] (id_apply)
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sledgehammer [type_enc = mono_guards, expect = some] (id_apply)
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by (metis_exhaust id_apply)
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ad923cdd4a5d added example to exercise higher-order reasoning with Sledgehammer and Metis
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lemma "id (a \<and> b) \<Longrightarrow> id b"
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sledgehammer [type_enc = erased, expect = some] (id_apply)
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sledgehammer [type_enc = poly_tags??, expect = some] (id_apply)
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sledgehammer [type_enc = poly_tags, expect = some] (id_apply)
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sledgehammer [type_enc = poly_guards??, expect = some] (id_apply)
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sledgehammer [type_enc = poly_guards, expect = some] (id_apply)
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sledgehammer [type_enc = mono_tags??, expect = some] (id_apply)
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sledgehammer [type_enc = mono_tags, expect = some] (id_apply)
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sledgehammer [type_enc = mono_guards??, expect = some] (id_apply)
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sledgehammer [type_enc = mono_guards, expect = some] (id_apply)
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by (metis_exhaust id_apply)
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ad923cdd4a5d added example to exercise higher-order reasoning with Sledgehammer and Metis
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lemma "id a \<Longrightarrow> id b \<Longrightarrow> id (a \<and> b)"
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sledgehammer [type_enc = erased, expect = some] (id_apply)
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sledgehammer [type_enc = poly_tags??, expect = some] (id_apply)
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sledgehammer [type_enc = poly_tags, expect = some] (id_apply)
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sledgehammer [type_enc = poly_guards??, expect = some] (id_apply)
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sledgehammer [type_enc = poly_guards, expect = some] (id_apply)
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sledgehammer [type_enc = mono_tags??, expect = some] (id_apply)
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sledgehammer [type_enc = mono_tags, expect = some] (id_apply)
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sledgehammer [type_enc = mono_guards??, expect = some] (id_apply)
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sledgehammer [type_enc = mono_guards, expect = some] (id_apply)
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by (metis_exhaust id_apply)
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ad923cdd4a5d added example to exercise higher-order reasoning with Sledgehammer and Metis
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lemma "id a \<Longrightarrow> id (a \<or> b)"
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sledgehammer [type_enc = erased, expect = some] (id_apply)
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sledgehammer [type_enc = poly_tags??, expect = some] (id_apply)
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sledgehammer [type_enc = poly_tags, expect = some] (id_apply)
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sledgehammer [type_enc = poly_guards??, expect = some] (id_apply)
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sledgehammer [type_enc = poly_guards, expect = some] (id_apply)
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sledgehammer [type_enc = mono_tags??, expect = some] (id_apply)
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sledgehammer [type_enc = mono_tags, expect = some] (id_apply)
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sledgehammer [type_enc = mono_guards??, expect = some] (id_apply)
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sledgehammer [type_enc = mono_guards, expect = some] (id_apply)
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by (metis_exhaust id_apply)
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ad923cdd4a5d added example to exercise higher-order reasoning with Sledgehammer and Metis
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lemma "id b \<Longrightarrow> id (a \<or> b)"
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sledgehammer [type_enc = erased, expect = some] (id_apply)
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sledgehammer [type_enc = poly_tags??, expect = some] (id_apply)
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sledgehammer [type_enc = poly_tags, expect = some] (id_apply)
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sledgehammer [type_enc = poly_guards??, expect = some] (id_apply)
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sledgehammer [type_enc = poly_guards, expect = some] (id_apply)
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sledgehammer [type_enc = mono_tags??, expect = some] (id_apply)
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sledgehammer [type_enc = mono_tags, expect = some] (id_apply)
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sledgehammer [type_enc = mono_guards??, expect = some] (id_apply)
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sledgehammer [type_enc = mono_guards, expect = some] (id_apply)
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by (metis_exhaust id_apply)
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ad923cdd4a5d added example to exercise higher-order reasoning with Sledgehammer and Metis
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lemma "id (\<not> a) \<Longrightarrow> id (\<not> b) \<Longrightarrow> id (\<not> (a \<or> b))"
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sledgehammer [type_enc = erased, expect = some] (id_apply)
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sledgehammer [type_enc = poly_tags??, expect = some] (id_apply)
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sledgehammer [type_enc = poly_tags, expect = some] (id_apply)
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sledgehammer [type_enc = poly_guards??, expect = some] (id_apply)
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sledgehammer [type_enc = poly_guards, expect = some] (id_apply)
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sledgehammer [type_enc = mono_tags??, expect = some] (id_apply)
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sledgehammer [type_enc = mono_tags, expect = some] (id_apply)
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sledgehammer [type_enc = mono_guards??, expect = some] (id_apply)
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sledgehammer [type_enc = mono_guards, expect = some] (id_apply)
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by (metis_exhaust id_apply)
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ad923cdd4a5d added example to exercise higher-order reasoning with Sledgehammer and Metis
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lemma "id (\<not> a) \<Longrightarrow> id (a \<longrightarrow> b)"
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sledgehammer [type_enc = erased, expect = some] (id_apply)
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sledgehammer [type_enc = poly_tags??, expect = some] (id_apply)
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sledgehammer [type_enc = poly_tags, expect = some] (id_apply)
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sledgehammer [type_enc = poly_guards??, expect = some] (id_apply)
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sledgehammer [type_enc = poly_guards, expect = some] (id_apply)
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sledgehammer [type_enc = mono_tags??, expect = some] (id_apply)
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sledgehammer [type_enc = mono_tags, expect = some] (id_apply)
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sledgehammer [type_enc = mono_guards??, expect = some] (id_apply)
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sledgehammer [type_enc = mono_guards, expect = some] (id_apply)
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by (metis_exhaust id_apply)
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ad923cdd4a5d added example to exercise higher-order reasoning with Sledgehammer and Metis
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lemma "id (a \<longrightarrow> b) \<longleftrightarrow> id (\<not> a \<or> b)"
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sledgehammer [type_enc = erased, expect = some] (id_apply)
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sledgehammer [type_enc = poly_tags??, expect = some] (id_apply)
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sledgehammer [type_enc = poly_tags, expect = some] (id_apply)
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sledgehammer [type_enc = poly_guards??, expect = some] (id_apply)
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sledgehammer [type_enc = poly_guards, expect = some] (id_apply)
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sledgehammer [type_enc = mono_tags??, expect = some] (id_apply)
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sledgehammer [type_enc = mono_tags, expect = some] (id_apply)
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sledgehammer [type_enc = mono_guards??, expect = some] (id_apply)
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sledgehammer [type_enc = mono_guards, expect = some] (id_apply)
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050a03afe024 Metis code cleanup
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by (metis_exhaust id_apply)
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ad923cdd4a5d added example to exercise higher-order reasoning with Sledgehammer and Metis
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end