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0:06:25

Counter example definition

0:04:36

Contrapositive english example 1

0:06:01

Quantifiers: Domains

0:05:51

Identities Distributive laws

0:04:47

Identities practice 2

0:09:04

Converse and inverse plus summary

0:06:29

Quantifiers: Existential quantifier

0:05:02

Identities De Morgan

0:04:14

Predicates 2 Domain motivation

0:04:44

Definition of contrapositive converse and inverse

0:03:45

Contrapositive english example 2

0:07:16

Proving logical equivalence 1

0:08:25

Predicates 1

0:12:17

Proving logical equivalence 2

0:08:14

Identities practice 3

0:09:39

Quantifiers: Universal quantifier

0:08:20

Unit 2 motivation

0:05:12

Remembering names of converse inverse and contrapositive

0:05:20

Identities practice 1

0:05:15

Translating English into converse inverse and contrapositive

0:04:23

Contrapositive and original statement are equivalent

0:09:22

Implication, conditional statement

0:02:44

Prep work side note on logical equivalence

0:15:50

System specification 2