Metamath Proof Explorer


Theorem xrgtso

Description: 'Greater than' is a strict ordering on the extended reals. (Contributed by Glauco Siliprandi, 11-Oct-2020)

Ref Expression
Assertion xrgtso < Or ℝ*

Proof

Step Hyp Ref Expression
1 xrltso < Or ℝ*
2 cnvso ( < Or ℝ* < Or ℝ* )
3 1 2 mpbi < Or ℝ*