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Definition df-er 5909
Description: Define the set of all equivalence relationships over a base set. (Contributed by SF, 19-Feb-2015.)
Assertion
Ref Expression
df-er Er = ( SymTrans )

Detailed syntax breakdown of Definition df-er
StepHypRef Expression
1 cer 5898 . 2 class Er
2 csym 5897 . . 3 class Sym
3 ctrans 5888 . . 3 class Trans
42, 3cin 3208 . 2 class ( SymTrans )
51, 4wceq 1642 1 wff Er = ( SymTrans )
Colors of variables: wff setvar class
This definition is referenced by:  erex  5920  ersymtr  5932
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