Friday the 13th

[den]

Comes after Thursday the 12th

Comes before Saturday the 14th.

that's all there is to it.

Comments

[klishnor.livejournal.com]

I used to have a mathematical proof back when I was in the 6th form at school (back in nineteen hundred and frozen stiff), given to the class by a math's teacher in a General Studies course. He was demonstrating various mathematical and statistical oddities, like the impossibility of giants (at least in the traditional shape) and why that relates to elephants walking on their toes, why building a small version of an airship is not a good way to test for stability in a larger version, why we have so much trouble estimating probabilities and many other things.

What's happened to that set of notes in the years since then I have no idea.

I'll check with a few statisticians I know to see if they've got it.