author | blanchet |
Thu, 14 Apr 2011 11:24:05 +0200 | |
changeset 42343 | 118cc349de35 |
parent 42342 | 6babd86a54a4 |
child 42345 | 5ecd55993606 |
permissions | -rw-r--r-- |
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(* Title: HOL/Metis_Examples/Clausify.thy |
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Author: Jasmin Blanchette, TU Muenchen |
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Testing Metis's clausifier. |
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*) |
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theory Clausify |
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imports Complex_Main |
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begin |
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text {* Definitional CNF for goal *} |
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(* FIXME: shouldn't need this *) |
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declare [[unify_search_bound = 100]] |
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declare [[unify_trace_bound = 100]] |
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axiomatization p :: "nat \<Rightarrow> nat \<Rightarrow> bool" where |
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pax: "\<exists>b. \<forall>a. ((p b a \<and> p 0 0 \<and> p 1 a) \<or> (p 0 1 \<and> p 1 0 \<and> p a b))" |
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declare [[metis_new_skolemizer = false]] |
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lemma "\<exists>b. \<forall>a. \<exists>x. (p b a \<or> x) \<and> (p 0 0 \<or> x) \<and> (p 1 a \<or> x) \<and> |
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(p 0 1 \<or> \<not> x) \<and> (p 1 0 \<or> \<not> x) \<and> (p a b \<or> \<not> x)" |
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by (metis pax) |
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lemma "\<exists>b. \<forall>a. \<exists>x. (p b a \<or> x) \<and> (p 0 0 \<or> x) \<and> (p 1 a \<or> x) \<and> |
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(p 0 1 \<or> \<not> x) \<and> (p 1 0 \<or> \<not> x) \<and> (p a b \<or> \<not> x)" |
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by (metisFT pax) |
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declare [[metis_new_skolemizer]] |
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lemma "\<exists>b. \<forall>a. \<exists>x. (p b a \<or> x) \<and> (p 0 0 \<or> x) \<and> (p 1 a \<or> x) \<and> |
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(p 0 1 \<or> \<not> x) \<and> (p 1 0 \<or> \<not> x) \<and> (p a b \<or> \<not> x)" |
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by (metis pax) |
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lemma "\<exists>b. \<forall>a. \<exists>x. (p b a \<or> x) \<and> (p 0 0 \<or> x) \<and> (p 1 a \<or> x) \<and> |
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(p 0 1 \<or> \<not> x) \<and> (p 1 0 \<or> \<not> x) \<and> (p a b \<or> \<not> x)" |
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by (metisFT pax) |
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text {* New Skolemizer *} |
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declare [[metis_new_skolemizer]] |
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lemma |
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fixes x :: real |
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6babd86a54a4
handle case where the same Skolem name is given different types in different subgoals in the new Skolemizer (this can happen if several type-instances of the same fact are needed by Metis, cf. example in "Clausify.thy") -- the solution reintroduces old code removed in a6725f293377
blanchet
parents:
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assumes fn_le: "!!n. f n \<le> x" and 1: "f ----> lim f" |
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shows "lim f \<le> x" |
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by (metis 1 LIMSEQ_le_const2 fn_le) |
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definition |
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bounded :: "'a::metric_space set \<Rightarrow> bool" where |
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"bounded S \<longleftrightarrow> (\<exists>x eee. \<forall>y\<in>S. dist x y \<le> eee)" |
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lemma "bounded T \<Longrightarrow> S \<subseteq> T ==> bounded S" |
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by (metis bounded_def subset_eq) |
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lemma |
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assumes a: "Quotient R Abs Rep" |
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shows "symp R" |
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using a unfolding Quotient_def using sympI |
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by metisFT |
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lemma |
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"(\<exists>x \<in> set xs. P x) \<longleftrightarrow> |
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handle case where the same Skolem name is given different types in different subgoals in the new Skolemizer (this can happen if several type-instances of the same fact are needed by Metis, cf. example in "Clausify.thy") -- the solution reintroduces old code removed in a6725f293377
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parents:
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(\<exists>ys x zs. xs = ys @ x # zs \<and> P x \<and> (\<forall>z \<in> set zs. \<not> P z))" |
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by (metis split_list_last_prop [where P = P] in_set_conv_decomp) |
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6babd86a54a4
handle case where the same Skolem name is given different types in different subgoals in the new Skolemizer (this can happen if several type-instances of the same fact are needed by Metis, cf. example in "Clausify.thy") -- the solution reintroduces old code removed in a6725f293377
blanchet
parents:
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lemma ex_tl: "EX ys. tl ys = xs" |
6babd86a54a4
handle case where the same Skolem name is given different types in different subgoals in the new Skolemizer (this can happen if several type-instances of the same fact are needed by Metis, cf. example in "Clausify.thy") -- the solution reintroduces old code removed in a6725f293377
blanchet
parents:
42340
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changeset
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using tl.simps(2) by fast |
6babd86a54a4
handle case where the same Skolem name is given different types in different subgoals in the new Skolemizer (this can happen if several type-instances of the same fact are needed by Metis, cf. example in "Clausify.thy") -- the solution reintroduces old code removed in a6725f293377
blanchet
parents:
42340
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6babd86a54a4
handle case where the same Skolem name is given different types in different subgoals in the new Skolemizer (this can happen if several type-instances of the same fact are needed by Metis, cf. example in "Clausify.thy") -- the solution reintroduces old code removed in a6725f293377
blanchet
parents:
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lemma "(\<exists>ys\<Colon>nat list. tl ys = xs) \<and> (\<exists>bs\<Colon>int list. tl bs = as)" |
6babd86a54a4
handle case where the same Skolem name is given different types in different subgoals in the new Skolemizer (this can happen if several type-instances of the same fact are needed by Metis, cf. example in "Clausify.thy") -- the solution reintroduces old code removed in a6725f293377
blanchet
parents:
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by (metis ex_tl) |
6babd86a54a4
handle case where the same Skolem name is given different types in different subgoals in the new Skolemizer (this can happen if several type-instances of the same fact are needed by Metis, cf. example in "Clausify.thy") -- the solution reintroduces old code removed in a6725f293377
blanchet
parents:
42340
diff
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end |