Write mathematical formulation for non-terminal

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Reference no: EM1387803

Non-terminal A is useless if there is no derivation from start symbol to string of tokens in which A appears.

(a) Write a mathematical formulation of this property.

(b) Is it probable that programming language grammar will have useless symbol? Descirbe.

(c) Illustrate that, if grammar has a useless symbol, computation of First and Fellow sets may produce sets that are too large to correctly construct the LL(1) parsing table.

Reference no: EM1387803

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