01:01:00

ECS 153, Spring 2021; Lecture #11; April 21, 2021

ECS 153 Spring 2021. Computer Security. This finishes the discussion of security policies. The video begins at 10:28 from the beginning.

01:21:21

ECS 289A Lecture 7a

01:26:51

ECS 289A Lecture 6b

15:53

ECS 220 9b:8.5 Immerman-Szelepcsényi…

ECS 220 9b:8.5 Immerman-SzelepcsÃ©nyi Theorem NSPACE(s(n)) = coNSPACE(s(n)) for s(n) â‰¥ log(n)

03:52

ECS 220 9a:1-8.6 IP=PSPACE (no proof)

05:26

ECS 220 6c:7.2-4 Gödel’s…

ECS 220 6c:7.2-4 GÃ¶delâ€™s Incompleteness Theorem (consistency)

06:36

ECS 220 6c:7.2-3 Gödel’s…

ECS 220 6c:7.2-3 GÃ¶delâ€™s Incompleteness Theorem (soundness)

05:55

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

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

11:33

ECS 220 6b:7.2-3 computable enumerability

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

07:50

ECS 220 5c:6.6 why is it hard to prove P neq NP

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

03:07

ECS 220 5a:6.4-3 relativizing proofs

08:37

ECS 220 4b:6.1-2 relation of NP to finding…

ECS 220 4b:6.1-2 relation of NP to finding mathematical proofs

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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