Hi any second semester students here?
got a question:
when removing unit productions and we have
S --> A
A --> B | b
B --> a
I can easily understand that to remove the unit productions we get
S --> A gives S -> b thus removing S--> A
S --> A --> B gives S --> a thus removing S --> A --> B
A --> B gives A --> a thus removing A --> B
result is:
S --> b | a
A --> a
B --> a
but the assignment has something like this
S --> AA
A --> BB | B
B --> a
what do I do with the AA..?
should I go S --> AA gives
a) S --> B and thus a
b) S --> BB and thus aa
is this correct?
and what if B also --> aa? then a and b above should include all combinations S-->B (thus a | aa) and S --> BB aa | aaa | aaaa
sorry hope this makes some sense, I just need to know if what Im doing is correct, the example in the book doesn't do S -> AA types.
thanks in advance for any guidance
Danie van Eeden
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