| Abstract | .... 2 | |
| 1 | Introduction | .... 3 |
| 2 | Alexander Templates(AT) | .... 3 |
| 2.1 | Naive Alexander Templates | .... 3 |
| 2.2 | Refined Alexander Templates | .... 6 |
| 2.3 | Correctness of Alexander Templates | .... 8 |
| 3 | Abstract Interpretation based on Alexander Templates | .... 9 |
| 3.1 | An Example of Mode Inference based on AT | .... 9 |
| 3.2 | A Formalization of the Mode Inference based on AT | .... 10 |
| 3.3 | Correctness of the Mode Inference based on AT | .... 13 |
| 4 | Discussion | .... 14 |
| 4.1 | Classification of Prolog Abstract Interpreters | .... 14 |
| 4.2 | Correspondence to Abstract Interpretation by Mellish | .... 15 |
| 4.3 | Correspondance to Abstract Interpretation based on OLDT Resolusion | .... 15 |
| 5 | Conclusions | .... 16 |
| Acknowledgements | .... 16 | |
| References | .... 16 | |
| Appendix Proof of the Mode Inference based on AT | .... 17 | |
| End | .... 21 |
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