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  1. #1
    One of the Undutchables Member The Stranger's Avatar
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    Default Logic

    Can someone please help me with this problem :P

    Hempel's Criteria: Jus(E, H), evidence E justifies (Jus) hypothesis H.
    1. Implication-condition: if E → H , then Jus(E, H) .
    2. Consistency-condition : if Jus(E, H) and Jus(E, F), then H and F are consistent.
    3. Special consequence-condition : if Jus(E, H) and H → F , then Jus(E, F).
    4. Reversed Consequence-condition: if Jus(E, H) and F → H , then Jus(E, F).

    an explication of Jus(E, H) is formed thus: Jus(E, H) if and only if …. E ….. H …… ;
    Both E and H have to appear in this sentence atleast once without being quantified.

    Prove that no explication can exist that meets all the 4 Hempel conditions simultaniously.
    Last edited by The Stranger; 12-06-2011 at 20:45.

    We do not sow.

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