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Definition df-ord 4743
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 4739 . 2
31wtr 4411 . . 3
4 cep 4651 . . . 4
51, 4wwe 4699 . . 3
63, 5wa 360 . 2
72, 6wb 178 1
Colors of variables: wff set class
This definition is referenced by:  ordeq  4747  ordwe  4753  ordtr  4754  trssord  4757  ordelord  4762  ord0  4792  ordon  6404  dford2  7742  smobeth  8632  gruina  8864  dford5reg  26748  dfon2  26758
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