ILC 1 expanded class ag

      ag    operations 

3  [V]	through, by change, transformation, process  « ag
6  [V]	from, come from, by origin, background, history, source, provenance  « ag
7  [V]	to, towards, for destination, potential, goal, orientation, direction, teleonomy, function, purpose  « ag
ag	operations
agb	sum, union
agi	product, intersection
agm	difference, complement
agn	symmetric difference
agt	Cartesian product, cross product

or

Facets key
0  under aspect      
1  at time           
2  in place          
3  through process   
4  made of element   
5  with organ        
6  from origin       
7  to destination    
8  like pattern      
9  of kind