An idempotent function that ensures an object has a non-negative sign.
An idempotent function that ensures an object has a non-negative sign.
Returns true
if x
and y
are equivalent, false
otherwise.
Returns false
if x
and y
are equivalent, true
otherwise.
Defines an order on B
by mapping B
to A
using f
and using A
s
order to order B
.
Defines an ordering on A
where all arrows switch direction.
Defines an ordering on A
where all arrows switch direction.
Returns Zero if a
is 0, Positive if a
is positive, and Negative is a
is negative.
Returns Zero if a
is 0, Positive if a
is positive, and Negative is a
is negative.
Returns 0 if a
is 0, > 0 if a
is positive, and < 0 is a
is negative.
Returns 0 if a
is 0, > 0 if a
is positive, and < 0 is a
is negative.