Simplification of Grammar(CFG) | 1. Removal of Useless Symbols |a.Removal of Non- Generating Symbols
As finite automata are need to be minimised, as it contains redundant states & transitions. Likewise, grammars should also get simplified. Means it should be analysed that are there any variables / productions extra / it may contain redundant productions / variables.
So, grammars are simplified with the help of 3 basic steps as below:
1. Removal of Useless Symbols
a. Removal of Non-Generating Symbols
b. Removal of Unreachable Symbols
2. Removal of €- Productions
3. Removal of Unit Productions
Here, o/p CFG of previous step will be given as i/p to next step.
Link for video on removal of Unreachable Symbols is as below:
• Simplification of CFG | 1. Removal of...
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