Modal Formulas are either Elementary or not ΣΔ Elementary
| Authors | |
|---|---|
| Publication date | 1976 |
| Journal | Journal of Symbolic Logic |
| Volume | Issue number | 41 | 2 |
| Pages (from-to) | 436-438 |
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| Document type | Article |
| Note | http://www.jstor.org/sici?sici=0022-4812(197606)41%3A2%3C436%3AMFAEEO%3E2.0.CO%3B2-J&cookieSet=1 (url for article online) |
| Published at | https://doi.org/10.1017/S0022481200051495 |
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