Abstract
To this point, we have not considered iterated knowledge operators as we did iterated belief operators earlier. Consider the following formulae, where p abstracts some factual sentence:
-
(1)
KaKap ⊃ Kap.
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(2)
Kap ⊃ KaKap.
Clearly (1) seems to be true, but (2) is the subject of considerable controversy. It may be useful to begin a discussion by indicating the connection between Ideal Analysis and an acceptance of (1) and (2) as conditions on knowledge.
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© 1972 Robert John Ackermann
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Ackermann, R.J. (1972). Pragmatic Analysis. In: Belief and Knowledge. Problems in Philosophy. Palgrave, London. https://doi.org/10.1007/978-1-349-00881-0_6
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DOI: https://doi.org/10.1007/978-1-349-00881-0_6
Publisher Name: Palgrave, London
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