12:25

ECS 120 0:7 combinatorics (discrete math review)

01:19:33

ECS 289A Lecture 3a

01:10:06

ECS 289A Lecture 2b

11:57

ECS 220 8c:8.6-1 Reachability expressed…

ECS 220 8c:8.6-1 Reachability expressed logically, and as a game between prover and skeptic

08:11

ECS 220 7a:7.6-2 Turing universality of 3-counter…

ECS 220 7a:7.6-2 Turing universality of 3-counter machines

05:26

ECS 220 6c:7.2-4 Gödel’s…

ECS 220 6c:7.2-4 Gödel’s Incompleteness Theorem (consistency)

05:55

ECS 220 6c:7.2-2 From undecidable problems to…

ECS 220 6c:7.2-2 From undecidable problems to unprovable truths

04:57

ECS 220 6c:7.2-1 arithmetical hierarchy

08:46

ECS 220 6b:7.2-2 showing problems are undecidable…

ECS 220 6b:7.2-2 showing problems are undecidable by reduction from halting problem

06:00

ECS 220 6b:7.2-1 halting problem

09:25

ECS 220 5b:6.6-4 two lemmas and full proof of…

ECS 220 5b:6.6-4 two lemmas and full proof of Ladner_s theorem

07:35

ECS 220 5b:6.6-2 almost proof of Ladner's…

ECS 220 5b:6.6-2 almost proof of Ladner's theorem

07:45

ECS 220 5b:6.6-1 Ladner's theorem, existence…

ECS 220 5b:6.6-1 Ladner's theorem, existence of NP-intermediate problems

07:59

ECS 220 5a:6.4-5 an oracle making P≠NP

02:44

ECS 220 4b:6.1-1 time constructible functions

07:19

ECS 220 4a:6.1-3 collapse propagates up padding…

ECS 220 4a:6.1-3 collapse propagates up padding technique

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