On invariant, dual invariant and absolute formulas
Andrzej Mostowski
GDML_Books, (1962), p.

CONTENTS Introduction..............................................................................................................................................................3 1. Lemmas concerning first order formulas.....................................................................................................5 2. Representability of recursively enumerable sets........................................................................................9 3. Simple theory of types.......................................................................................................................................10 4. Formalization of the satisfaction relation.......................................................................................................12 5. Formulas 𝔐 and 𝔑.............................................................................................17 6. A characterization of conditions expressed by invariant, dual invariant and absolute formulas.........20 7. The space of models.........................................................................................................................................23 8. A generalization of the results of section 6....................................................................................................32 Bibliography..............................................................................................................................................................37

EUDML-ID : urn:eudml:doc:268409
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     author = {Andrzej Mostowski},
     title = {On invariant, dual invariant and absolute formulas},
     series = {GDML\_Books},
     year = {1962},
     language = {en},
     url = {http://dml.mathdoc.fr/item/bwmeta1.element.zamlynska-9170d66e-c0f5-473b-9f26-3d6a5597619c}
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Andrzej Mostowski. On invariant, dual invariant and absolute formulas. GDML_Books (1962),  http://gdmltest.u-ga.fr/item/bwmeta1.element.zamlynska-9170d66e-c0f5-473b-9f26-3d6a5597619c/