/ / ___\ / ____\ / ____ \ / ___ \ / ____ \ / ___ ___ \ ____\
| | 1 \/ 7 | | 1 \/ 11 | | 1 \/ 11 | | 1 \/ 7 | | 1 \/ 11 | | 1 \/ 7 1 \/ 7 | 1 \/ 11 |
Or|And|-2/5 < x, x < - - -----|, And|4/5 < x, x < - + ------|, And|x < -2/5, - - ------ < x|, And|x < 4/5, - + ----- < x|, And|x < oo, - + ------ < x|, And|x < - + -----, - - ----- < x|, x < - - ------|
\ \ 5 5 / \ 5 5 / \ 5 5 / \ 5 5 / \ 5 5 / \ 5 5 5 5 / 5 5 /
$$\left(- \frac{2}{5} < x \wedge x < \frac{1}{5} - \frac{\sqrt{7}}{5}\right) \vee \left(\frac{4}{5} < x \wedge x < \frac{1}{5} + \frac{\sqrt{11}}{5}\right) \vee \left(x < - \frac{2}{5} \wedge \frac{1}{5} - \frac{\sqrt{11}}{5} < x\right) \vee \left(x < \frac{4}{5} \wedge \frac{1}{5} + \frac{\sqrt{7}}{5} < x\right) \vee \left(x < \infty \wedge \frac{1}{5} + \frac{\sqrt{11}}{5} < x\right) \vee \left(x < \frac{1}{5} + \frac{\sqrt{7}}{5} \wedge \frac{1}{5} - \frac{\sqrt{7}}{5} < x\right) \vee x < \frac{1}{5} - \frac{\sqrt{11}}{5}$$
(x < 1/5 - sqrt(11)/5)∨((-2/5 < x)∧(x < 1/5 - sqrt(7)/5))∨((4/5 < x)∧(x < 1/5 + sqrt(11)/5))∨((x < -2/5)∧(1/5 - sqrt(11)/5 < x))∨((x < 4/5)∧(1/5 + sqrt(7)/5 < x))∨((x < oo)∧(1/5 + sqrt(11)/5 < x))∨((x < 1/5 + sqrt(7)/5)∧(1/5 - sqrt(7)/5 < x))
____ ____ ___ ___ ___ ___ ____ ____
1 \/ 11 1 \/ 11 1 \/ 7 1 \/ 7 1 \/ 7 1 \/ 7 1 \/ 11 1 \/ 11
(-oo, - - ------) U (- - ------, -2/5) U (-2/5, - - -----) U (- - -----, - + -----) U (- + -----, 4/5) U (4/5, - + ------) U (- + ------, oo)
5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5
$$x\ in\ \left(-\infty, \frac{1}{5} - \frac{\sqrt{11}}{5}\right) \cup \left(\frac{1}{5} - \frac{\sqrt{11}}{5}, - \frac{2}{5}\right) \cup \left(- \frac{2}{5}, \frac{1}{5} - \frac{\sqrt{7}}{5}\right) \cup \left(\frac{1}{5} - \frac{\sqrt{7}}{5}, \frac{1}{5} + \frac{\sqrt{7}}{5}\right) \cup \left(\frac{1}{5} + \frac{\sqrt{7}}{5}, \frac{4}{5}\right) \cup \left(\frac{4}{5}, \frac{1}{5} + \frac{\sqrt{11}}{5}\right) \cup \left(\frac{1}{5} + \frac{\sqrt{11}}{5}, \infty\right)$$
x in Union(Interval.open(-oo, 1/5 - sqrt(11)/5), Interval.open(-2/5, 1/5 - sqrt(7)/5), Interval.open(4/5, 1/5 + sqrt(11)/5), Interval.open(1/5 - sqrt(11)/5, -2/5), Interval.open(1/5 + sqrt(11)/5, oo), Interval.open(1/5 - sqrt(7)/5, 1/5 + sqrt(7)/5), Interval.open(1/5 + sqrt(7)/5, 4/5))