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Pop culture quotes written in first-order logic – can you figure them out? (hamkins.org)
3 points by AllTalk on March 17, 2016 | past | 1 comment
Math for kids: fold, punch and cut (hamkins.org)
3 points by AllTalk on Feb 23, 2016 | past
Math for nine-year-olds: fold, punch and cut for symmetry (hamkins.org)
1 point by AllTalk on Feb 22, 2016 | past
Infinite chess -– bishop cannon gun battery fires out bishop cannonballs (hamkins.org)
3 points by AllTalk on Oct 31, 2015 | past | 1 comment
Insane position in infinite chess -– bishop gun battery fires bishops out (hamkins.org)
2 points by AllTalk on Oct 29, 2015 | past
Transfinite Nim (hamkins.org)
9 points by robinhouston on May 28, 2015 | past
Transfinite epistemic logic puzzle challenge: Cheryl's birthday on steroids (hamkins.org)
2 points by AllTalk on April 19, 2015 | past | 3 comments
Math for eight-year-olds: graph theory for kids (hamkins.org)
350 points by AllTalk on April 10, 2015 | past | 45 comments
Math for eight-year-olds: graph theory and the Euler characteristic (hamkins.org)
3 points by AllTalk on April 9, 2015 | past
The rule-making game (hamkins.org)
11 points by arbsn on Sept 2, 2014 | past | 2 comments
What is the largest number that you can describe on an index card? (hamkins.org)
1 point by tokenadult on June 13, 2014 | past
Math for seven-year-olds (hamkins.org)
262 points by liotier on June 13, 2014 | past | 66 comments

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