<any>  (<any>)  C 
as  (x<any> y<any> => <any>)  G 
 coerces y to an instance of x.  
classof  (x<any> => <class>)  G 
 returns concrete class 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)).  
tostr  (x<any> => <str>)  G 
 returns string representation of object.  
