# The Boston Diaries

The ongoing saga of a programmer who doesn't live in Boston, nor does he even like Boston, but yet named his weblog/journal “The Boston Diaries.”

Go figure.

## Wednesday, May 06, 2015

### Dogs and cats living together

I'm watching an animated interview of Buckminster Fuller when I see this sequence of equations:

a = b a2 = ab a2 - b2 = ab - b2 (a+b)(a-b) = b(a-b) a+b = b 2b = b 2 = 1

And I'm thinking, that looks right, as far as I can remember algebra, but two can't be equal to one, can it?

I had to work through it by hand to find the problem, and now, gentle reader, you get to work through it yourself.

You're welcome.

## Obligatory Miscellaneous

You have my permission to link freely to any entry here. Go ahead, I won't bite. I promise.

The dates are the permanent links to that day's entries (or entry, if there is only one entry). The titles are the permanent links to that entry only. The format for the links are simple: Start with the base link for this site: https://boston.conman.org/, then add the date you are interested in, say 2000/08/01, so that would make the final URL:

https://boston.conman.org/2000/08/01

You can also specify the entire month by leaving off the day portion. You can even select an arbitrary portion of time.

You may also note subtle shading of the links and that's intentional: the “closer” the link is (relative to the page) the “brighter” it appears. It's an experiment in using color shading to denote the distance a link is from here. If you don't notice it, don't worry; it's not all that important.

It is assumed that every brand name, slogan, corporate name, symbol, design element, et cetera mentioned in these pages is a protected and/or trademarked entity, the sole property of its owner(s), and acknowledgement of this status is implied.