MPE Home Metamath Proof Explorer < Previous   Next >
Nearby theorems
Mirrors  >  Home  >  MPE Home  >  Th. List  >  df-on Unicode version

Definition df-on 4805
Description: Define the class of all ordinal numbers. Definition 7.11 of [TakeutiZaring] p. 38. (Contributed by NM, 5-Jun-1994.)
Assertion
Ref Expression
df-on

Detailed syntax breakdown of Definition df-on
StepHypRef Expression
1 con0 4801 . 2
2 vx . . . . 5
32cv 1369 . . . 4
43word 4800 . . 3
54, 2cab 2435 . 2
61, 5wceq 1370 1
Colors of variables: wff setvar class
This definition is referenced by:  elong  4809  dfon2  27723
  Copyright terms: Public domain W3C validator