For the rule "S transmitted...", I would have ... to S.
For the rule "..to R also .. S", this ... ). Now combine this rule with the previous rule about S and your ...
I'm confused why the arrow splits for PT 22 GAME 4 RULE 4 and the arrow doesn't split for PT 31 GAME 2 RULE 4 even though they both contain the words NEITHER NOR.
I thought the arrow can't be split for NEITHER NOR statements.