- INVERSE
- Reciprocal
- Wrong side out
- 1/4, to 4
- Opposite
- Zero, to zero
- Arctangent, vis-à-vis tangent
- Direct opposite
- Turned upside down
- Division, vis-à-vis multiplication
- Directly opposite.
- 2, to 1/2
- What roots are, to powers
- Trig calculation
- 1/3, to 3
- Reciprocal, in multiplication
- If not p, then not q, to "If p, then q"