Some Hasse diagrams for Boolean functions
of 2 variables. These all have 𝑡𝑟𝑢𝑒
nodes above 𝑓𝑎𝑙𝑠𝑒 ones, so are all nonmonotonic.
More from Chalkdust
Significant figures: Sofya Kovalevskaya
Nora Koparan tells the story of the first female professor of mathematics
Top Ten: Mathematical games
The undisputed chart of the best mathematical games this season
Pawns, puzzles, and proofs
Dimitrios Roxanas tells us why playing chess backwards is the new black (and white).
On the cover: Harriss spiral
Find out more about the spiral trees on the cover of Issue 09
Talkdust, episode 2
A podcast for the mathematically curious
Dear Dirichlet, Issue 07
Pigs, popes and produce are among the topics of discussion in this issue's Dear Dirichlet advice column