  When the Buddha says that a person in one life and the person in another life are neither the same nor different, one’s first response might be to take ‘different’ to mean something other than ‘not the same’. But while this is possible in English given the ambiguity of ‘the same’, it is not possible in the Pāli source, where the Buddha is represented as unambiguously denying both numerical identity and numerical distinctness. This has led some to wonder whether the Buddha does not employ a deviant logic. Such suspicions are strengthened by those cases where the options are not two but four, cases of the so-called tetralemma (catuṣkoṭi). For instance, when the Buddha is questioned about the post-mortem status of the enlightened person or arhat (e.g., at M I.483–8) the possibilities are listed as: (1) the arhat continues to exist after death, (2) does not exist after death, (3) both exists and does not exist after death, and (4) neither exists nor does not exist after death. When the Buddha rejects both (1) and (2) we get a repetition of ‘neither the same nor different’. But when he goes on to entertain, and then reject, (3) and (4) the logical difficulties are compounded. Since each of (3) and (4) appears to be formally contradictory, to entertain either is to entertain the possibility that a contradiction might be true. And their denial seems tantamount to affirmation of excluded middle, which is prima facie incompatible with the denial of both (1) and (2). One might wonder whether we are here in the presence of the mystical.