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(a)Underline all bound occurrences of variables in the following formulae. Circle all free occurrences of variables. {i N | i < f(i) g(i)} (x R
(a)Underline all bound occurrences of variables in the following formulae. Circle all free occurrences of variables.
{i N | i < f(i) g(i)}
(x R g(x) < f(y))
(b) Make the following substitutions
{i N | i < f(i) g(i)} [x, i, f : y, j, g]
(x R g(x) < f(y)) [y : y + 1]
(x R g(x) < f(y)) [y : x + 1]
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