Description: 'Greater than' is a strict ordering on the extended reals. (Contributed by Glauco Siliprandi, 11-Oct-2020)
| Ref | Expression | ||
|---|---|---|---|
| Assertion | xrgtso | ⊢ ◡ < Or ℝ* |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | xrltso | ⊢ < Or ℝ* | |
| 2 | cnvso | ⊢ ( < Or ℝ* ↔ ◡ < Or ℝ* ) | |
| 3 | 1 2 | mpbi | ⊢ ◡ < Or ℝ* |