If we have predicate $P_1(x,y)$

and two functions $f(x,y)$ and $g(x)$

what will be this predicate? Could you explain me a general principle of substitution functions in predicates?

If we have predicate $P_1(x,y)$

and two functions $f(x,y)$ and $g(x)$

what will be this predicate? Could you explain me a general principle of substitution functions in predicates?

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