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01:20:06 ECS20 - W22 - Lecture 3 (2T): Logic 2 ECS20 - W22 - Lecture 3 (2T): Logic 2	ECS20 - W22 - Lecture 3 (2T): Logic 2 Review (particularly of functional completeness). More boolean operators: IMPLIES, IFF, XOR, NAND, NOR. Gates and circuits. A formal treatment of boolean formulas: syntax, truth assignments, and… boolean operators implies xor iff truth assignment truth table equivalence functional completeness nand nor gate circuit truth formula symbols symbol phi parentheses table formulas operators meaning values function assignment operator From Phil Rogaway 0 likes 184 plays 0
07:21 ECS 220 9a:2-8.5 Geography game ECS 220 9a:2-8.5 Geography game	ECS 220 9a:2-8.5 Geography game player node graph space nodes game players edge geography blue clause formula formulas cnf names moves idea blues start clauses From David Doty 0 likes 29 plays 0
05:08 ECS 220 3b:5.2-2 variants of Boolean… ECS 220 3b:5.2-2 variants of Boolean satisfiability	ECS 220 3b:5.2-2 variants of Boolean satisfiability problem sat satisfiability assignments formulas formula clause assignment complexity algorithm question cnf probability class problems sharpie np half majority classes From David Doty 0 likes 29 plays 0
09:42 ECS 220 3b:5.2-1 from circuits to formulas ECS 220 3b:5.2-1 from circuits to formulas	ECS 220 3b:5.2-1 from circuits to formulas formula circuit output inputs cnf gate end input circuits values gates variables x2 words formulas problem clauses size x1 blow From David Doty 0 likes 29 plays 0
02:03 ECS 120 8c:2 reduction between two problems is an… ECS 120 8c:2 reduction between two problems is an algorithm, but it does not solve either problem	ECS 120 8c:2 reduction between two problems is an algorithm, but it does not solve either problem question lot algorithm reduction graph formula instance algorithms reductions examples hardness job size grass formulas k. threshold phi sat problem From David Doty 0 likes 145 plays 0
05:29 ECS 120 8b:5 definition of the 3SAT problem ECS 120 8b:5 definition of the 3SAT problem	ECS 120 8b:5 definition of the 3SAT problem formula literals clause cnf clauses formulas conjunction variable kind problem phi bunch negation bit tools kinds fee satisfiability decision variables From David Doty 0 likes 211 plays 0
09:28 ECS 120 8a:4 implementation in Python and the… ECS 120 8a:4 implementation in Python and the Boolean satisfiability problem	ECS 120 8a:4 implementation in Python and the Boolean satisfiability problem formula problem assignment bit formulas phi thing variables string lot problems cook fact verifier np satisfiability words python algorithm sat From David Doty 0 likes 243 plays 0