Array ( [0] => Array ( [title] => L6A [link] => https://www.youtube.com/embed/HcsWE1aQLiQ ) [1] => Array ( [title] => L6B [link] => https://www.youtube.com/embed/8DXudlqj_2c ) [2] => Array ( [title] => L6C [link] => https://www.youtube.com/embed/gu_jO1_Rekc ) [3] => Array ( [title] => L6D [link] => https://www.youtube.com/embed/zpe-0mSNJHI ) ) 國立清華大學開放式課程OpenCourseWare(NTHU, OCW) - 第6R講 Propositional function review