Question

4. Convert the following grammar to Chomsky Normal Form: SabAB A ABC B BA|A|

Answer 1

Solution here. Please upvote if find it helpful
eg. 1) А A 7 slution : A grammar can be in chomsky Normal form CCNF) if it has following properties: :) Non- terminal generating a Hearmingl CĂ →a) non- terminal generating too non terminal Ceog A AB ii) stard symbal , s generating E ( 35 ) Convesion from given grammar to given grammar is S ab AB A BABI E B → BAalAlE CNF - Eliminate start symbol from RHS, by creating new production S1 S S ab AB Byt 2) A BAB I E B BAal Ale Remove null productions , AYE, S1 S S ab AB А - A & BAB B BA a Remove unit production, BJA

(having 7) Angain production S 82 83 84 more than two non terminals en RHS) remove it S Sl -7 ( [st sa sg sy 85 84 85 S S2 S3 S5 > a S2 > S3 b b AB S4 S3 S4 CNF form А > 84 sa 83 84 B В 8) Hence given grammar is converted Normal Farm where is satisfies all Conditions of CNF. in chomsky