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单词 backtracking conditional
释义
backtracking conditional

Logic
  • A subjunctive conditional φψ asserting that were φ to hold at some time t, then ψ would have held at some point t earlier than t. For example, the conditional

    • If one were to read a finished version of The Castle, then Franz Kafka would have had to have survived his tuberculosis.

    suggests that because Kafka’s premature death left The Castle unfinished, the truth of the antecedent (the existence of a completed copy of The Castle) at the present date would entail the truth of the consequent (i.e., Kafka’s recovery) in 1924.


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