Given TwinWikis T1,T2 with TwinPages P1,P2 => 

L1 on P1 is TwinLink to P2 :<=> Clicking L1 navigates to P2

Discussion:

• As TwinWikis T1,T2 with TwinPages P1,P2 are arbitrary, we need not explicitly write:

 ** L2 on P2 is TwinLink to P1 :<=> Clicking L2 navigates to P1

• Preferably the appearance of a TwinLink, coming in form of an icon, is called a TwinIcon.

-- FridemarPache