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Definition df-ord 4839
Description: Define the ordinal predicate, which is true for a class that is transitive and is well-ordered by the epsilon relation. Variant of definition of [BellMachover] p. 468. (Contributed by NM, 17-Sep-1993.)
Assertion
Ref Expression
df-ord

Detailed syntax breakdown of Definition df-ord
StepHypRef Expression
1 cA . . 3
21word 4835 . 2
31wtr 4502 . . 3
4 cep 4747 . . . 4
51, 4wwe 4795 . . 3
63, 5wa 369 . 2
72, 6wb 184 1
Colors of variables: wff setvar class
This definition is referenced by:  ordeq  4843  ordwe  4849  ordtr  4850  trssord  4853  ordelord  4858  ord0  4888  ordon  6527  dford2  7963  smobeth  8887  gruina  9122  dford5reg  28051  dfon2  28061
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