Metamath Proof Explorer
Table of Contents - 15.6.1. Ordinal numbers
- cons
- df-ons
- elons
- onssno
- onno
- 0ons
- 1ons
- elons2
- elons2d
- onleft
- ltonold
- ltonsex
- oncutleft
- oncutlt
- bday11on
- onnolt
- onlts
- onles
- onltsd
- onlesd
- oniso
- onswe
- onsse
- onsis
- ons2ind
- bdayons
- onaddscl
- onmulscl
- addonbday
- peano2ons
- onsbnd
- onsbnd2