provable       
adjective uk/ˈpruː.və.bəl/ us/ˈpruː.və.bəl/
 可证明的,可证实的
able to be proved
  We want to deal only in facts - what is scientifically provable. 我们只想谈论科学上可以证明的事实。 
 There is sometimes a divide between the spoken word and the provable fact.  有时候口头上的话和可证实的事实之间是有区别的。