Question: Eliminate - productions: Example S 0 S S A B A aAA B b B B nullable ( G ) = { A , B

Eliminate -productions: Example
S0S
SAB
AaAA
BbBB
nullable (G)={A,B,S,S0}
Generate new rules:
Remove -productions
S0S|
SAB|A|B
AaAA|aA|a
BbBB|bB|b
equivalent grammars
EXPLAIN THIS QUESTION THE ONE IN THE GREEN PARTS WHY DID WE PUT CROSS TO THEM CAN YOU EXPLAIN IT PLEASE
Eliminate -productions: Example S0S SAB AaAA BbBB nullable (G)={A,B,S,S0} Generate new

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