Necessary and Sufficient Conditions

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Starting with simple examples, explains the difference between a necessary and a sufficient condition. Defines both of them using the logical operator implies and uses the Contrapositive identity to explain how the two kinds of conditions relate to each other.
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As Jarule sang in the 90s: 'What would I do without you?'. Thank you this was so helpful.

Kgotso_Koete
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Thank you very very much!!! I have been struggling with this and you cleared everything up! <333

AriaHarmony
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finally i can understand implication, implication means sufficient

othmankhalil
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2:40, why is the little guy slipping if the sidewalks are dry?

MrConverse
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Good video. Now I understand it thoroughly.

erickaparicio
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Jen could have climbed the wall to get in or have been given access by a friend so she might not necessarily have a ticket.

planetluna
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Jen could also work at the fair outside of our imperfect knowledge, right?

LukeGalloway-lpid
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the third row in te truth table at 1:51 is going over my head. if p and q are different, how can one imply the other?

bertvsrob
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1 question : if i have good grades it is sufficient condition to be accepted in university?i think no bcs maybe i have kill someone or steal or i die etc..am i wrong? thx in advandance

adosar
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i can’t focus because you pronounce your Rs like Ws

srsrlysophia
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Perhaps examples that were absolutely necessary, etc., would have been more convincing. Some students from real life keep bringing up real life examples of people sneaking into movie theaters without tickets. The examples you give are clear, but weak.

toddboothbee
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I don't know what I just watched.

nasajenpondu