Set theory (operators)

[DrD]

Well there is that ... (the Math Tools approach, which, naturally, I didn't think of)!

Still, (Math Tools | User | <scroll waaay to the bottom of that list> | User Functions | <scroll through that list> | select function - in my case, I can still type, "intersect({blah}, {blah})," faster.

{blah} intersect {blah} works -- but {blah} ∩() {blah} doesn't quite get the context correct, and can't work in that format. How would one get past the parens enclosing expected params?

Inefficient for sure. Necessary? I don't know. The Prime gods will sort it out, no doubt.

-Dale-