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Definition df-ord 4693
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 4689 . 2
31wtr 4360 . . 3
4 cep 4601 . . . 4
51, 4wwe 4649 . . 3
63, 5wa 362 . 2
72, 6wb 178 1
Colors of variables: wff setvar class
This definition is referenced by:  ordeq  4697  ordwe  4703  ordtr  4704  trssord  4707  ordelord  4712  ord0  4742  ordon  6364  dford2  7773  smobeth  8697  gruina  8931  dford5reg  27297  dfon2  27307
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