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Extent and Intent in a Lattice

  • The extent of a formal concept is given by all formal objects on the paths which lead down from the given concept node
    • The extent of an arbitrary concept is then found in the principle ideal generated by that concept

  • The intent of a formal concept is given by all the formal attributes on the paths which lead up from the given concept node
    • The intent of an arbitrary concept is then found in the principle filter generated by that concept


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