Two basic results on translations between logics
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Abstract
The aim of the present paper is to show two basic results concerning translation between logics:
[1] The first result establishes that given two logics S1 and S2 with languages L1 and L2, and a translation F of L1 into L2 that interprets S1 into S2, then, given any intermediate logic S3 between S1 and S2, the same translation F interprets S1 into S3.
[2] The second result establishes that the translation F cannot interpret S3 into S2.
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