Raymond Friend
@raymigo
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Raymond Friend
@raymigo
An “ordering” or “comparison” comparing humans is _transitive_ if for all people A, B, C, we have (A < B and B < C) implies (A < C) If I replace “<“ by one of the following, which orderings are transitive? “Is a descendent of” “Is a parent of” “Likes” “Is married to” “Older than”
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Raymond Friend
@raymigo
🚨Math riddle 🚨 I rented a house with a square-tile floor in the hallway, which is 4 tiles wide by 150 tiles long. When I rented the house, the owner said “the monthly rent costs as many dollars are there are squares amongst the hallway tiles” Apparently $600 wasn’t enough 😭What’s the right price?
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Raymond Friend
@raymigo
Riddle!! Right now is midnight on the US east coast. I have an upcoming late-afternoon wedding to attend this November. All else I know is that the event begins in a square-number of hours from right now. What day and time are the event at?
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Raymond Friend
@raymigo
Another math riddle: how can you determine whether a number written in base 5 is divisible by 4? How about base 5 divisibility by 3?
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Raymond Friend
@raymigo
New math riddle 🥳 The sequence {1, 10, 100, 1000, …} has the property that you can never get the same sum twice only using elements of this sequence. E.g. 110 = 10 + 100. No other way to get this sum What’s the slowest-growing sequence of increasing positive integers with this “a + b ≠ c + d” property?
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Raymond Friend
@raymigo
Riddle: me & you are given hats each with a positive integer on them. We can only see the other person’s hat, no talking. We each are allowed to write finitely many numbers on our own piece of paper. If at least one of us wrote down our own number, we both win! How to guarantee a win? https://i.imgur.com/JVFvf9U.jpg
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Raymond Friend
@raymigo
On a whim joined @jakal to go to the NYC meetup last night. Learned about Farcaster and @blobs, and ran into my college friend @goki !! Met a lot of great ppl. Also I love talking math so like lmk (i’m a logic phd student)
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