| 
 <any>  |  (<any>)  |  C  | 
| 
 as  |  (x|<any> y|<any> => <any>)  |  G  | 
| 
 |  coerces y to an instance of x.  |   | 
| 
 ==  |  (x|<any> y|<any> => <log>)  |  G  | 
| 
 |  returns true iff x and y are computationally
  equivalent.  |   | 
| 
 =  |  (x|<any> y|<any> => <log>)  |  G  | 
| 
 |  returns true iff x and y are equal, where
  equality is user defined and defaults to ==.  |   | 
| 
 ~=  |  (x|<any> y|<any> => <log>)  |  G  | 
| 
 |   ==  (not (= x y)).  |   | 
| 
 ~==  |  (x|<any> y|<any> => <log>)  |  G  | 
| 
 |   ==  (not (== x y)).  |   | 
| 
 to-str  |  (x|<any> => <str>)  |  G  | 
| 
 |  returns string representation of object.  |   | 
| 
 |