## Order!

We discussed fields here. Today we’re going to continue by talking about a more specific kind of field.

## Division!

Here’s another. Once again, rot13 your answers. Show your work. First correct solution gets bragging rights. PLI WA|PRISK WA TWS TIW RNK RSP NL

## Division!

When I was young, my Mom used to buy crossword puzzle magazines at the grocery store. She would do the crossword and the cryptograms, and I would do the other stuff: anagrams, logic puzzles, and of course number puzzles. My… Continue Reading

## Equality!

A field, in abstract algebra, is a system where: Addition works the way you expect. Multiplication also works the way you expect. Multiplication distriutes over addition We can make this more precise.

## Logic!

Here, once again, is the question: Three perfect logicians, A, B, and C, sit around a circular table. There is a set of stamps, four red and four green. Each logician has had two stamps pasted on his forehead; he… Continue Reading

## φ!

φ (phi), also known as the Golden Ratio, was thought by the ancient Pythagoreans to have mystical properties. Even the more level-headed Greeks ascribed it artistic ones, for instance considering the most eye-pleasing rectangle to be one where the ratio… Continue Reading