L23A
00:00 Definition of a tree
01:40 Examples
05:20 Property and proof
L23B
00:00 Proof ( cont.)
L23C
00:00 Theorem ( equivalent statements for a tree)
L23D
00:00 Theorem ( cont.)
07:00 Definition of a rooted tree
09:20 Examples ( including some nouns)
第23講 Trees版書.pdf
