Returns true if x and y are equivalent, false otherwise.
Returns true if x and y are equivalent, false otherwise.
Returns false if x and y are equivalent, true 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 As
order to order B.
This is similar to Semigroup#pow, except that a pow 0 is defined to be
the multiplicative identity.
This is similar to Semigroup#pow, except that a pow 0 is defined to be
the multiplicative identity.
Defines an ordering on A where all arrows switch direction.
Defines an ordering on A where all arrows switch direction.