Find free variables in the following formulas: i. ∀x(p(x) -> ∃y~q(f(x), y, f(y))) ii. ∀x(∃yr(x, f(y)) -> r(x, y)) iii. ∀z(p(z) -> ∃y(∃xq(x, y, z) V q(z, y, x))) iv. ∀z∃x∃y(q(z, u, g(u, y)) V r(u, g(z, u)))
Find free variables in the following formulas: i. ∀x(p(x) -> ∃y~q(f(x), y, f(y))) ii. ∀x(∃yr(x, f(y)) -> r(x, y)) iii. ∀z(p(z) -> ∃y(∃xq(x, y, z) V q(z, y, x))) iv. ∀z∃x∃y(q(z, u, g(u, y)) V r(u, g(z, u)))
Elements Of Modern Algebra
8th Edition
ISBN:9781285463230
Author:Gilbert, Linda, Jimmie
Publisher:Gilbert, Linda, Jimmie
Chapter5: Rings, Integral Domains, And Fields
Section5.4: Ordered Integral Domains
Problem 8E: If x and y are elements of an ordered integral domain D, prove the following inequalities. a....
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Find free variables in the following formulas:
i.
∀x(p(x) -> ∃y~q(f(x), y, f(y)))
ii.
∀x(∃yr(x, f(y)) -> r(x, y))
iii.
∀z(p(z) -> ∃y(∃xq(x, y, z) V q(z, y, x)))
iv.
∀z∃x∃y(q(z, u, g(u, y)) V r(u, g(z, u)))
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