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Definition df-ord 4625
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 4621 . 2
31wtr 4336 . . 3
4 cep 4533 . . . 4
51, 4wwe 4581 . . 3
63, 5wa 360 . 2
72, 6wb 178 1
Colors of variables: wff set class
This definition is referenced by:  ordeq  4629  ordwe  4635  ordtr  4636  trssord  4639  ordelord  4644  ord0  4674  ordon  4804  dford2  7624  smobeth  8512  gruina  8744  dford5reg  25513  dfon2  25523
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