How do I do something equal to a bitAnd for a collection?
	
	{ 1. 2. 6.} bitAnd:[{ 3. 1. 7.}] --> #(3. 2. 7.)
	
{1. 2. 6} with: {3. 1. 7} collect: [:x :y| x bitAnd: y]

The result is actually #(1 0 6), if we do
	
{1. 2. 6} with: {3. 1. 7} collect: [:x :y| x bitOr: y]

the result is #(3 3 7).  I don't know how #(3 2 7) (note the absence
of dots) is to be derived.