## Abstract It is shown by Parsons [2] that the first‐order fragment of Frege's (inconsistent) logical system in the __Grundgesetze der Arithmetic__ is consistent. In this note we formulate and prove a stronger version of this result for arbitrary first‐order theories. We also show that a natural a
✦ LIBER ✦
Inessential parts of extensions of first-order theories
✍ Scribed by Marian Przełęcki; Ryszard Wójcicki
- Publisher
- Springer Netherlands
- Year
- 1971
- Tongue
- English
- Weight
- 672 KB
- Volume
- 28
- Category
- Article
- ISSN
- 0039-3215
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