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Split a/b -- R1
The lack of coherence in the a attestation is probably due to the attraction of the resulting correspondence with ἀνωτερικά. The majority attestation for b does not follow this trend in general, which is a strong argument in favor of the simplex. The weightiest A-related witness, 03, is, however, devalued by its tendency to omit dispensable elements of text.
 Cf. Barrett (893) and Pervo (468).