Moving to Connecticut!

Things have been a little slow here on the blog lately, with fewer and shorter posts than usual — the reason, I’m happy to announce, is that I’m finishing up my time as a visitor here in Minnesota and this summer we’re moving to Connecticut! I’m starting a tenure-track position at Southern Connecticut State University. I’m thrilled … More Moving to Connecticut!

Three Good Decisions

I have a hard time remembering things that went well. It’s much easier for me to call to mind mistakes I’ve made: times I dropped the ball, or tried and failed to do something that matters to me. This is definitely a phenomenon many people experience (negativity bias), but at least in my case there’s … More Three Good Decisions

“A and B” is equivalent to “B and A”, and the order matters

In math, I’m used to making no distinction between saying “A and B” and saying “B and A” — they each assert that both of the component statements are true. In fancy terms, we say that the conjunction “and” is commutative, like addition (a+b=b+a) and multiplication (ab = ba). Many mathematical operations are not commutative in general, … More “A and B” is equivalent to “B and A”, and the order matters