 Another possibility is to interpret a sentence’s probability as a measure of its (un)certainty. For example, the sentence ‘Jones is in Spain at the moment’ can have any degree of certainty, ranging from 0 (maximal uncertainty) to 1 (maximal certainty). (Note that 0 is actually a kind of certainty, viz. certainty about falsity; however, in this entry we follow Adams’ terminology (1998, 31) and interpret 0 as maximal uncertainty.) According to this interpretation, the following theorem follows from the strong soundness and completeness of probabilistic semantics: