문자

CHAR= 대소문자 구분 CHAR-EQUAL 대소문자 구분 x

Numeric Analog	Case-Sensitive	Case-Insensitive
=	CHAR=	CHAR-EQUAL
/=	CHAR/=	CHAR-NOT-EQUAL
<	CHAR<	CHAR-LESSP
>	CHAR>	CHAR-GREATERP
<=	CHAR<=	CHAR-NOT-GREATERP
>=	CHAR>=	CHAR-NOT-LESSP

Ref

Practical Common Lisp - 10. Numbers, Characters, and Strings