Discrete Math 1 - Tutorial 35 - Proof by Contradiction Example

Proof by Contradiction Example

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[bunny]

thank you very much
you made the proof of contradiction make more sense to me with this video
keep up the good work! :)

[tonybqqq]

Can we just use the 3rd step ( -p --> r) and the premises ( - r) to get ( p ) by modus tollens?

[khaizenkf]

thanks you very much! u are very good teacher!