[Community Puzzle] Propositions in Frege’s ideography


#1

https://www.codingame.com/training/medium/propositions-in-freges-ideography

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Created by @nicola1,validated by @Niako,@anid and @lhm.
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#2

What is A NOR B ?


#3

It’s NOT (A OR B) but you don’t need it to code a solution, eventually for debugging.


#4

Thanks I meant more the Ascii art behind A NOR B but I found a bug in my code.

For others : it is like NOT (A OR NOT NOT B)

+---- A

  '-+ B