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Definition df-eprel 4535
Description: Define the epsilon relation. Similar to Definition 6.22 of [TakeutiZaring] p. 30. The epsilon relation and set membership are the same, that is, when is a set by ?Error: 5 _E { 1 , 5 } ^ This math symbol is not active (i.e. was not declared in this scope). epelg 4536. Thus, 5 {1,5} (ex-eprel 21792). (Contributed by NM, 13-Aug-1995.)
Assertion
Ref Expression
df-eprel
Distinct variable group:   ,

Detailed syntax breakdown of Definition df-eprel
StepHypRef Expression
1 cep 4533 . 2
2 vx . . . 4
3 vy . . . 4
42, 3wel 1729 . . 3
54, 2, 3copab 4300 . 2
61, 5wceq 1654 1
Colors of variables: wff set class
This definition is referenced by:  epelg  4536  rele  5045
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