doc-src/Tutorial/Ifexpr/Exercise.ML
author wenzelm
Thu, 24 Jan 2002 22:42:14 +0100
changeset 12847 afa356dbcb15
parent 5377 efb799c5ed3c
permissions -rw-r--r--
fixed subgoal_tac; fails on non-existent subgoal;
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use "normif.ML";
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use "proof.ML";
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qed_spec_mp "normif_correct";
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Addsimps [normif_correct];
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use "norm.ML";
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use "proof.ML";
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qed "norm_correct";
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Goal "!t e. normal t & normal e --> normal(normif b t e)";
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use "proof.ML";
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qed_spec_mp "normal_normif";
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Addsimps [normal_normif];
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use "normal_norm.ML";
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use "proof.ML";
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qed "normal_norm";