Array ( [0] => Array ( [title] => L8A [link] => https://www.youtube.com/embed/zjZ5KHWCSJU ) [1] => Array ( [title] => L8B [link] => https://www.youtube.com/embed/a0P83ewqeUo ) [2] => Array ( [title] => L8C [link] => https://www.youtube.com/embed/cs1BeTsgnl0 ) [3] => Array ( [title] => L8D [link] => https://www.youtube.com/embed/E9l_XNBuT6M ) ) 國立清華大學開放式課程OpenCourseWare(NTHU, OCW) - 第8講 Axiom/Lemma/Corollary/Theorem/Conjecture