Proof by Contraposition

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  1. Eddie Woo
  2. math
  3. maths
  4. mathematics
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Proof by Contrapositive 0:03:38

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Proof by Contrapositive: If n^2 is Even then n is Even

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Discrete Math 1.7.2 0:06:39

Discrete Math 1.7.2 Proof by Contraposition

Proof by Contrapositive: 0:03:17

Proof by Contrapositive: If 5x - 7 is odd, then x is even

Example: Proof by 0:11:34

Example: Proof by Contraposition

Proof by contrapositive 0:07:15

Proof by contrapositive

Proof by Contrapositive 0:11:59

Proof by Contrapositive

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Proof By Contraposition 0:06:37

Proof By Contraposition

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Proof by contraposition: 0:07:19

Proof by contraposition: if 3n + 2 even, then n even

Converse, Inverse, & 0:11:54

Converse, Inverse, & Contrapositive - Conditional & Biconditional Statements, Logic, Geometr...

PROOF by CONTRADICTION 0:09:36

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Contrapositive Proofs with 0:06:52

Contrapositive Proofs with Divisibility and Inequalities

Example: Proof by 0:05:43

Example: Proof by Contradiction [2]

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Proof by Contradiction 0:09:00

Proof by Contradiction | Method & First Example

PROOF BY CONTRAPOSITION 0:06:58

PROOF BY CONTRAPOSITION

Example: Proof by 0:04:38

Example: Proof by Contraposition [2]

Комментарии
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this guy has been helping me with math since middle school. now i'm a CS student and he's still carrying me through it. my hero

lisiabecker
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One of my international inspirational teacher.

chabzaa
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Technically speaking, if P is false, both P -> Q and also P -> ¬Q. So P -> Q and P -> ¬Q aren't strict logical negations.

mxlexrd
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For a moment I tought the title said "Proof by constipation"

strayorion
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feel bad for the guy who has his laptop in this vid bc he cant go of task

kvu
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Guys, what is the branch if math that we learn this in ? Discrete math ?

ibrahimalmetwale
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what's this about rainy days being cold? Never been in the summer monsoon... ;)

shyamdrury
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Do you add to e at the top of your whiteboard each lesson?

flippedscience
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12/02/2021 + Madam I'm Adam = 22?

musicsubicandcebu
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who else read Contrapoints and went !?

frogery
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Let's say P is false and Q is false. So, ~Q-->~P is true, which means P-->Q is also true. But, Q is false, so P-->~Q is true. So, P-->Q and P-->~Q, but we don't have any contradiction.

patrickwithee