real-negative-or-zero-not-inf -- r7rs Type real-zero:
rational-zero:
integer-zero:
real-negative-not-inf:
rational-negative-or-zero:
rational-zero:
integer-zero:
rational-negative:
integer-negative:
integer-negative-or-zero:
integer-zero:
integer-negative:
exact-integer-negative-or-zero:
number-negative-or-zero;number-not-nan;number;number-not-inf;real-not-nan;complex-not-nan;complex;real;complex-not-inf;rational-zero;integer-zero;exact-integer-zero;rational-negative;integer-negative;exact-integer-negative;integer-negative-or-zero;exact-integer-negative-or-zero;range-length-zero;(lambda (value) (and (real? value) (or (negative? value) (zero? value)) (not (infinite? value))))