de·mon·stra·ble /dɪˈmɑn(t)strəbəl/
 (a.)可論證的


 De·mon·stra·ble a.
 1. Capable of being demonstrated; that can be proved beyond doubt or question.
    The grand articles of our belief are as demonstrable as geometry.   --Glanvill.
 2. Proved; apparent. [Obs.]

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 demonstrable
      adj 1: necessarily or demonstrably true; "demonstrable truths"
             [syn: incontrovertible]
      2: capable of being demonstrated or proved; "obvious lies"; "a
         demonstrable lack of concern for the general welfare";
         "practical truth provable to all men"- Walter Bagehot
         [syn: provable]