Sixth written assignment Mar 29, 2025 Manetti 6.8 Manetti 6.9 Manetti 6.11 Manetti 6.12 Show that if \(X\) is a first-countable topological space and \((a_n)\) is a sequence from \(X\) and \(a\) is a limit point of \((a_n)\) then a subsequence \((a_{n_i})$ of\)(a_n)\(converges to\)a$$.