lispdoc - results for upper-case-p

(upper-case-p char)
Function: The argument must be a character object; UPPER-CASE-P returns T if the argument is an upper-case character, NIL otherwise.
 Mentioned in:
CLtL2 - 13. Characters
CLtL2 - 13.2. Predicates on Characters
CLtL2 - 13.4. Character Conversions
HyperSpec - Function UPPER-CASE-P, LOWER-CASE-P, BOTH-CASE-P