<div id="msgcns!C651643B9222D38D!1701" class="bvMsg">.<a href="http://4.bp.blogspot.com/_KcmCd184fEE/SR_DI-Wf2-I/AAAAAAAAD70/c6VcVZ4SHoA/s1600-h/Finite_State_Machine.png"><img style="width:200px;cursor:hand;height:317px" alt="" src="http://4.bp.blogspot.com/_KcmCd184fEE/SR_DI-Wf2-I/AAAAAAAAD70/c6VcVZ4SHoA/s320/Finite_State_Machine.png" border="0" /></a> .<br /><br />今天為了證明 Let T = {(i, j, k) i, j, k ∈ N}. Show that T is countable.<br /><br />就花了我不少時間 ... XD<br /><br />最後來是用 3D (Three-dimensional) infinite matrix 乖乖的證完ㄌ ... lol <div></div></div>