0 votes 0 votes True/False Question : Let $A$ be a countable union of lines in $\mathbb{R}^{3}$. Then $\mathbb{R}^{3} \setminus A$ is connected. TIFR tifrmaths2020 true-false + – soujanyareddy13 asked Aug 28, 2020 edited Sep 21, 2020 by soujanyareddy13 soujanyareddy13 143 views answer comment Share Follow See all 0 reply Please log in or register to add a comment.