Definition of "nonraven"
nonraven
noun
plural nonravens
Quotations
Hempel remarks that if we know that we are indoors, and so that the object under examination is a nonraven, then we have no need to check whether it is nonblack (ie, to do ornithology indoors) in order for our report of that object to logically entail H's development.
2007, Marc Lange, Philosophy of science: an anthology