The book I am transcribing uses a Double Strike R (ℝ) in quite a few equations in one section of the material. I believe the ℝ means Real Number Set. How do I transcribe this ℝ in Nemeth Code?
Ex: … other possible geometries: S2 x ℝ, H2 x ℝ, … of SL (2, ℝ).
There is no listed nemeth symbol for that R. I hope that I am picturing the same thing you are asking about. I think generally a script R is used. The text would have defined what it represents.