4.1 Booleans

8.16.0.4

procedure
(boolean? v) → boolean?
v : any/c

Returns #true, if v is a Boolean value; #false, otherwise.

procedure
(not b) → boolean?
b : boolean?

Returns the logical complement of b.

procedure
(and b ...) → boolean?
b : boolean?

Returns the logical conjunction of the bs. In the special case of zero arguments, returns #true.

procedure
(nand b ...) → boolean?
b : boolean?

Equivalent to (not (and b ...)).

procedure
(or b ...) → boolean?
b : boolean?

Returns the logical inclusive disjunction of the bs. In the special case of zero arguments, returns #false.

procedure
(nor b ...) → boolean?
b : boolean?

Equivalent to (not (or b ...)).

procedure
(xor b ...) → boolean?
b : boolean?

Returns the logical exclusive disjunction of the bs. In the special case of zero arguments, returns #false.

procedure
(nxor b ...) → boolean?
b : boolean?

Equivalent to (not (xor b ...)).