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Margin for error semantics and signal perception

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A joint modelling of objective worlds and subjective perceptions within two-dimensional semantics eliminates the margin for error principle and solves the epistemic sorites paradox. Two objective knowledge modalities can be defined in two-dimensional frames accounting for subjective perceptions: “necessary knowledge” (NK) and “possible knowledge” (PK), the latter being better suited to the interpretation of knowledge utterances. Two-dimensional semantics can in some cases be reduced to one-dimensional ones, by defining accessibility relations between objective worlds that reflect subjective perceptions: NK and PK are respectively equivalent to \({\square \square }\) and \({\lozenge \square }\) in some one-dimensional frame, and to \({\square }\) and another modality in some other.

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Correspondence to David Spector.

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Spector, D. Margin for error semantics and signal perception. Synthese 190, 3247–3263 (2013).

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  • Margin for error
  • Sorites paradox
  • Intransitive frames
  • Positive introspection
  • Possible worlds semantics