ILE Home Intuitionistic Logic Explorer < Previous   Next >
Nearby theorems
Mirrors  >  Home  >  ILE Home  >  Th. List  >  df-1o Unicode version

Definition df-1o 6031
Description: Define the ordinal number 1. (Contributed by NM, 29-Oct-1995.)
Assertion
Ref Expression
df-1o  |-  1o  =  suc  (/)

Detailed syntax breakdown of Definition df-1o
StepHypRef Expression
1 c1o 6024 . 2  class  1o
2 c0 3251 . . 3  class  (/)
32csuc 4129 . 2  class  suc  (/)
41, 3wceq 1259 1  wff  1o  =  suc  (/)
Colors of variables: wff set class
This definition is referenced by:  1on  6038  df1o2  6043  ordgt0ge1  6048  oa1suc  6077  1onn  6123  nnm1  6127  nlt1pig  6496  indpi  6497
  Copyright terms: Public domain W3C validator