L26_A
Algebraic System
L26_B
Example of Semigroup
Array ( [0] => Array ( [title] => L26A [link] => https://www.youtube.com/embed/TubCpTOwWsU ) [1] => Array ( [title] => L26B [link] => https://www.youtube.com/embed/W5NT2AUc2Yo ) )
Title
第1節
第2節
Syllabus
L26_A
Algebraic System
L26_B
Example of Semigroup