Just For Fun / Troperithmetic

When two or more existing tropes are combined (via addition, subtraction, multiplication, division, etc.) to make a different but somehow related trope.

Compare Rebus Bubble, X Meets Y, and Mix and Match.

Some of the basic building blocks for trope equations:
+ = "and", "with"
| = "or"
- = "not", "without"
x = "is"
^ = "to the power of"

This list is alphabetized by the end result. Please put new tropes in the appropriate spot.