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Definition df-qs 7241
Description: Define quotient set. is usually an equivalence relation. Definition of [Enderton] p. 58. (Contributed by NM, 23-Jul-1995.)
Assertion
Ref Expression
df-qs
Distinct variable groups:   , ,   , ,

Detailed syntax breakdown of Definition df-qs
StepHypRef Expression
1 cA . . 3
2 cR . . 3
31, 2cqs 7234 . 2
4 vy . . . . . 6
54cv 1369 . . . . 5
6 vx . . . . . . 7
76cv 1369 . . . . . 6
87, 2cec 7233 . . . . 5
95, 8wceq 1370 . . . 4
109, 6, 1wrex 2801 . . 3
1110, 4cab 2439 . 2
123, 11wceq 1370 1
Colors of variables: wff setvar class
This definition is referenced by:  qseq1  7284  qseq2  7285  elqsg  7286  qsexg  7292  uniqs  7294  snec  7297  qsinxp  7310  qliftf  7322  divslem  14640  pi1xfrf  21024  pi1cof  21030
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