Learn · TED

Talk4 min

Can you solve the troll's paradox riddle?

Daniel Finkel · TED

Watch At TED

About

You and your brother have discovered another realm and set off exploring the new wonderful world. Along the way, you see a troll catching creatures in an enormous net. The troll agrees to release the creatures if you can come up with a statement that is both truth and false. Can you come up with the correct sentence and force the troll to release them? Dan Finkel shows how. [Directed by Artrake Studio, narrated by Addison Anderson].

The talk

  1. Can you solve the troll's paradox riddle? 4 min · TED's player

Credits and licence

Institution
TED
Department
TED-Ed
Speaker
Daniel Finkel
Year
2018
Level
For everyone
Language
English
Subjects
Mathematics
Source
TED
Licence
CC BY-NC-ND 4.0, as TED states it. Non-commercial use only, and no changed versions. TED's terms
Attribution
TED Talks are licensed by TED under Creative Commons BY-NC-ND 4.0 International and are shown here in TED's own player, as TED's usage policy asks.
Who can watch
TED gives no rating. Invisible Network shows it to Tweens profiles and older, judged from what the source says about it. How courses are placed