Sentence:  When Peter B. Kyne ( Pride of Palomar , 43 ) informed us in 1921 that we had an instinctive dislike for the Japanese , did the heated debates of the Californians settle the truth or falsity of the <WSD>proposition</WSD> ? 
Meaning of the word marked with <WSD> tags:  (logic) a statement that affirms or denies something and is either true or false