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      :: the other nodes: they are as important as the previous ones in this world. Let's examine them.

(click and drag the atoms)

(double click to release atom)

   

(1) The FOE is a close relative of the FO molecule,

introduced in chemlambda v2.

   

(2) The Arrow has a fleeting existence,

unless we choose to not use COMB for "bubbles"

i.e. for closed strings of Arrow nodes.

   

(3) FRIN and FROUT cap the free in and out ports.