Question: Question: Insider a first order language having an individual symbol, a, a unary function symbol, f, and a unary relation symbol, F. Let = {x(F(x)

Question:

Insider a first order language having an individual symbol, a, a unary function symbol, f, and a unary relation symbol,

F. Let = {x(F(x) F(f(x)))}.

(a) Prove rigourously that resolution on the set can continue forever, always producing new formulas.

(b) Give a valuation, v, which satisfies , and explain why your choice of v is correct.

(Reference: CS245 20s Practices)

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